{"title":"Engine — LT4","description":null,"products":[{"product_id":"harrop-lt-port-injection-kit","title":"Harrop LT Port Injection Kit | LT1 \/ LT4 \/ L8T","description":"\u003ch2\u003eHarrop LT Port Injection Kit | LT1 \/ LT4 \/ L8T\u003c\/h2\u003e\n\u003cp\u003eHarrop port-injection spacer and fuel-rail system for high-output Gen V LT engine combinations requiring supplementary fuel delivery.\u003c\/p\u003e\n\u003ch3\u003eManufacturer-confirmed features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSuits LT1, LT4 and L8T engines\u003c\/li\u003e\n\u003cli\u003eSuitable for supercharged or naturally aspirated combinations\u003c\/li\u003e\n\u003cli\u003eBillet-aluminium port-injection spacers and fuel rails\u003c\/li\u003e\n\u003cli\u003eFuel rails are positioned in the valley beneath the supercharger for direct port targeting\u003c\/li\u003e\n\u003cli\u003eEnables full-flow return-style fuel plumbing\u003c\/li\u003e\n\u003cli\u003eCan operate in conjunction with the OEM direct-injection system\u003c\/li\u003e\n\u003cli\u003eHard-coat black anodised finish\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional injectors, controller strategy, plumbing and calibration must be selected to suit the intended engine and fuel system.\u003c\/p\u003e\u003ch2\u003eWorkshop Support\u003c\/h2\u003e\u003cp\u003eBuilt by Boost \u0026amp; Tune can assist with fitment review, installation, supporting modifications, configuration and calibration requirements where applicable.\u003c\/p\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eChevrolet Camaro 6TH Gen LT1\u003c\/li\u003e\n\u003cli\u003eChevrolet Camaro 6TH Gen Zl1 LT4\u003c\/li\u003e\n\u003cli\u003eChevrolet Silverado Hd 2020 6 6 Gas\u003c\/li\u003e\n\u003cli\u003eGMC Sierra Hd 2020 6 6 Gas\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003csection class=\"related-product-ranges\"\u003e\u003ch3\u003eExplore related ranges\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/bbt-nav-family-gm-lt\"\u003eGM LT\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/bbt-nav-gm-lt-fuel-system\"\u003eGM LT Fuel System\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/harrop-gm-lt\"\u003eHarrop | GM LT\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/harrop-fuel-system\"\u003eHarrop | Fuel System\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\n\u003cp class=\"bbt-restored-discovery-links\"\u003e\u003cstrong\u003eExplore related BBT ranges:\u003c\/strong\u003e \u003ca href=\"\/collections\/harrop-performance\"\u003eHarrop Performance\u003c\/a\u003e.\u003c\/p\u003e","brand":"Harrop","offers":[{"title":"Default Title","offer_id":43684154900547,"sku":"99-AKIT15926","price":1495.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/Harrop_20LT_20Port_20Injection_20Kit_20-_201_20-1024x1024.jpg?v=1787029743"},{"product_id":"magnuson-tvs2650r-lt4-camaro-cts-v-supercharger-system","title":"Magnuson TVS2650R Magnum LT4 Camaro \/ CTS-V Supercharger System","description":"\u003cp\u003e\u003cstrong\u003eMagnuson TVS2650R Magnum LT4 Camaro \/ CTS-V Supercharger System\u003c\/strong\u003e is a Magnuson supercharger system for the listed performance application.\u003c\/p\u003e\u003cp\u003eThis is a vehicle-specific forced-induction package intended for the listed engine and chassis. Before installation, confirm the exact vehicle configuration, fuel system, intake\/exhaust setup, cooling requirements and ECU calibration strategy.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Magnuson\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Supercharger system\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Magnuson TVS2650R Magnum LT4 Camaro \/ CTS-V Supercharger System\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e confirm the exact vehicle, engine and supporting hardware before ordering\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eBuilt by Boost \u0026amp; Tune can assist with product selection, supporting components, workshop installation and calibration requirements where applicable.\u003c\/p\u003e\u003ch3\u003eProduct Details\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eProduct:\u003c\/strong\u003e Magnuson TVS2650R Magnum LT4 Camaro \/ CTS-V Supercharger System\u003cbr\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e Magnuson\u003cbr\u003e\u003cstrong\u003eCategory:\u003c\/strong\u003e Supercharger\u003c\/p\u003e\u003ch3\u003eBefore Ordering\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eConfirm the listed application matches the vehicle, engine or component being upgraded.\u003c\/li\u003e\n\u003cli\u003eCheck whether supporting hardware, fabrication, wiring, fluids, gaskets or calibration are required for the installation.\u003c\/li\u003e\n\u003cli\u003eIf the vehicle has non-standard modifications, confirm compatibility before purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWorkshop Support\u003c\/h3\u003e\u003cp\u003eBuilt by Boost \u0026amp; Tune can assist with application confirmation, engine-build specification and professional installation. Contact us before ordering if you need help confirming suitability or planning the complete upgrade package.\u003c\/p\u003e\u003ch2\u003eBrand\u003c\/h2\u003e\u003cp\u003eMagnuson\u003c\/p\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eChevrolet Camaro 6Th Gen Zl1 LT4\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eConfirm chassis, engine, drivetrain and production-year compatibility before ordering.\u003c\/p\u003e","brand":"Magnuson","offers":[{"title":"Default Title","offer_id":43688348876867,"sku":"MS01-26-62-176-BL","price":14699.99,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/MS01-26-62-176-BL-Magnuson-25590486237271.jpg?v=1787120816"},{"product_id":"kn-63-3099-chevrolet-camaro-zl1-intake","title":"K\u0026N 63-3099 Performance Air Intake — Chevrolet Camaro ZL1","description":"\u003cp\u003e\u003cstrong\u003eK\u0026amp;N 63-3099 Performance Air Intake — Chevrolet Camaro ZL1\u003c\/strong\u003e is a vehicle-specific K\u0026amp;N Performance air intake system for Chevrolet Camaro ZL1.\u003c\/p\u003e\u003cp\u003eThe intake is designed to replace the restrictive sections of the factory induction path with a performance-oriented K\u0026amp;N system while maintaining a practical, serviceable installation. The system uses K\u0026amp;N performance filtration and is designed as a serviceable, vehicle-specific intake upgrade.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eK\u0026amp;N part number:\u003c\/strong\u003e 63-3099\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Chevrolet Camaro ZL1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct family:\u003c\/strong\u003e Performance Air Intake\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurpose:\u003c\/strong\u003e improve intake airflow and provide a reusable performance filtration solution for the listed application\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eVehicle condition, factory airbox layout and previous modifications can affect installation. Built by Boost \u0026amp; Tune can assist with fitment confirmation, supply and workshop installation in Melbourne.\u003c\/p\u003e\u003ch3\u003eProduct Details\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eProduct:\u003c\/strong\u003e K\u0026amp;N 63-3099 Performance Air Intake — Chevrolet Camaro ZL1\u003cbr\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e K\u0026amp;N\u003cbr\u003e\u003cstrong\u003eCategory:\u003c\/strong\u003e Intake\u003c\/p\u003e\u003ch3\u003eBefore Ordering\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eConfirm the listed application matches the vehicle, engine or component being upgraded.\u003c\/li\u003e\n\u003cli\u003eCheck whether supporting hardware, fabrication, wiring, fluids, gaskets or calibration are required for the installation.\u003c\/li\u003e\n\u003cli\u003eIf the vehicle has non-standard modifications, confirm compatibility before purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWorkshop Support\u003c\/h3\u003e\u003cp\u003eBuilt by Boost \u0026amp; Tune can assist with fitment, fabrication, installation and dyno calibration where required. Contact us before ordering if you need help confirming suitability or planning the complete upgrade package.\u003c\/p\u003e\u003ch2\u003eBrand\u003c\/h2\u003e\u003cp\u003eK\u0026amp;N\u003c\/p\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eChevrolet Camaro 6Th Gen Zl1 LT4\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eConfirm chassis, engine, drivetrain and production-year compatibility before ordering.\u003c\/p\u003e\n\u003csection class=\"related-product-ranges\"\u003e\u003ch3\u003eExplore related ranges\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e\u003ca href=\"\/collections\/kn-performance\"\u003eK\u0026amp;N Performance\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\u003c\/section\u003e","brand":"K\u0026N","offers":[{"title":"Default Title","offer_id":43688567832643,"sku":"KN63-3099","price":1097.24,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/KN63-3099-K-N-7130503905367.jpg?v=1787123780"},{"product_id":"crow-cams-12654622","title":"Crow Cams \/ Genuine GM Gen V LT4 Head Gasket","description":"\u003cp\u003eGen V LT4 Head Gasket provides the specified sealing components for its compatible engine or service application. Confirm the exact engine, casting, gasket arrangement and package contents before assembly.\u003c\/p\u003e\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e12654622\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eComponent brand\u003c\/th\u003e\n\u003ctd\u003eGenuine GM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct category\u003c\/th\u003e\n\u003ctd\u003eEngine Gaskets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eTechnical Information\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eSold each - 2 required per engine Suits supercharged applications\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eApplication \u0026amp; Fitment\u003c\/h3\u003e\u003cp\u003eLT4 Manufacturer Part Number: 12654622\u003c\/p\u003e\u003ch3\u003eSupplied Contents\u003c\/h3\u003e\u003cp\u003eThe part or quantity described by this SKU is supplied. Related components, installation hardware and ancillary parts are separate unless explicitly stated.\u003c\/p\u003e\u003ch3\u003eInstallation \u0026amp; Configuration\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eConfirm bore, cylinder-head casting, port shape, gasket thickness and engine generation. Clean and inspect the sealing surfaces before assembly.\u003c\/li\u003e\n\u003cli\u003eUse the correct tightening sequence and fasteners; replace torque-to-yield bolts and one-time-use seals where specified by the engine manufacturer.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eRecommended Associated Products\u003c\/h3\u003e\u003cp\u003eOnly purchase components required for your actual engine configuration. Included kit components are already accounted for; separately listed alternatives must not be added cumulatively.\u003c\/p\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eOptional:\u003c\/strong\u003e \u003ca href=\"\/products\/crow-cams-genvdoddelete\"\u003eCrow Cams \/ Genuine GM Gen V LT DOD Delete Kit\u003c\/a\u003e — Gen V mechanical AFM-delete package alternative for a correctly matched engine. Do not duplicate head gaskets already included.\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eProduct Selection \u0026amp; Workshop Support\u003c\/h3\u003e\u003cp\u003eBuilt by Boost \u0026amp; Tune is an authorised Crow Cams dealer and performance engine workshop. We can assist with the correct camshaft profile, compatible valve-train hardware, engine preparation, installation and calibration. Provide the exact engine code, intended use and existing components so the complete package can be checked before ordering.\u003c\/p\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eChevrolet Camaro 6Th Gen Zl1 LT4\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eConfirm chassis, engine, drivetrain and production-year compatibility before ordering.\u003c\/p\u003e\u003ch2\u003eWorkshop Support\u003c\/h2\u003e\u003cp\u003eBuilt by Boost \u0026amp; Tune can assist with fitment review, installation, supporting modifications, configuration and calibration requirements where applicable.\u003c\/p\u003e\u003ch2\u003eInstallation Guidance\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eProfessional installation recommended:\u003c\/strong\u003e Professional installation is recommended for this listing.\u003c\/li\u003e\u003c\/ul\u003e\n\u003csection class=\"related-product-ranges\"\u003e\u003ch3\u003eExplore related ranges\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e\u003ca href=\"\/collections\/bbt-brand-crow-cams\"\u003eCrow Cams\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\u003c\/section\u003e","brand":"Crow Cams","offers":[{"title":"Default Title","offer_id":43772458205251,"sku":"12654622","price":158.03,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/800x800-thumbnail-1670555392.12654622.png?v=1788856685"},{"product_id":"crow-cams-12681018","title":"Crow Cams \/ Genuine GM Gen V LT VVT Solenoid","description":"\u003cp\u003eGen V LT VVT Solenoid is a Manufacturer-listed engine or valvetrain component supplied through Crow Cams. It must be selected by exact part number and engine configuration rather than by vehicle name alone.\u003c\/p\u003e\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e12681018\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eComponent brand\u003c\/th\u003e\n\u003ctd\u003eGenuine GM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct category\u003c\/th\u003e\n\u003ctd\u003eEngine Parts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eTechnical Information\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e12681018 - Genuine GM Gen V LT VVT Solenoid\u003c\/li\u003e\n\u003cli\u003eConfirm exact supplied contents with Built by Boost \u0026amp; Tune before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplication \u0026amp; Fitment\u003c\/h3\u003e\u003cp\u003eCompatible GM LS \/ engine-family applications shown for this product. Confirm the exact engine code and build before ordering. Manufacturer Part Number: 12681018\u003c\/p\u003e\u003ch3\u003eSupplied Contents\u003c\/h3\u003e\u003cp\u003eThe part or quantity described by this SKU is supplied. Related components, installation hardware and ancillary parts are separate unless explicitly stated.\u003c\/p\u003e\u003ch3\u003eInstallation \u0026amp; Configuration\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eConfirm exact engine and part-number compatibility, supplied components and all required service hardware before installation. Follow the product-manufacturer and engine-manufacturer procedures.\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eAssociated Products \u0026amp; Selection\u003c\/h3\u003e\u003cp\u003eBuilt by Boost \u0026amp; Tune can confirm the exact engine-specific supporting components and provide a complete parts recommendation before ordering.\u003c\/p\u003e\u003ch3\u003eProduct Selection \u0026amp; Workshop Support\u003c\/h3\u003e\u003cp\u003eBuilt by Boost \u0026amp; Tune is an authorised Crow Cams dealer and performance engine workshop. We can assist with the correct camshaft profile, compatible valve-train hardware, engine preparation, installation and calibration. Provide the exact engine code, intended use and existing components so the complete package can be checked before ordering.\u003c\/p\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eChevrolet Camaro 6Th Gen LT1\u003c\/li\u003e\n\u003cli\u003eChevrolet Camaro 6Th Gen Zl1 LT4\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eConfirm chassis, engine, drivetrain and production-year compatibility before ordering.\u003c\/p\u003e\u003ch2\u003eWorkshop Support\u003c\/h2\u003e\u003cp\u003eBuilt by Boost \u0026amp; Tune can assist with fitment review, installation, supporting modifications, configuration and calibration requirements where applicable.\u003c\/p\u003e\u003ch2\u003eInstallation Guidance\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eProfessional installation recommended:\u003c\/strong\u003e Professional installation is recommended for this listing.\u003c\/li\u003e\u003c\/ul\u003e\n\u003csection class=\"related-product-ranges\"\u003e\u003ch3\u003eExplore related ranges\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e\u003ca href=\"\/collections\/bbt-brand-crow-cams\"\u003eCrow Cams\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\u003c\/section\u003e","brand":"Crow Cams","offers":[{"title":"Default Title","offer_id":43772461121603,"sku":"12681018","price":214.84,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/800x800-thumbnail-1764712616.12681018_T.png?v=1788856749"},{"product_id":"crow-cams-genvheadboltset","title":"Crow Cams \/ Genuine GM Gen V LT Head Bolt Set","description":"\u003cp\u003eGen V LT Head Bolt Set provides the specified fastening hardware for a compatible engine assembly. Follow the genuine fastener instructions and verify the exact application and supplied quantity.\u003c\/p\u003e\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003eGENVHEADBOLTSET\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eComponent brand\u003c\/th\u003e\n\u003ctd\u003eGenuine GM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct category\u003c\/th\u003e\n\u003ctd\u003eEngine Parts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eTechnical Information\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSuits Gen V LT Engines, Set Contains: 19x 11546959 Head Bolts and 1x 11611976 Short Head Bolt\u003c\/li\u003e\n\u003cli\u003eSet Contains: 19x 11546959 Head Bolts and 1x 11611976 Short Head Bolt Suits Gen V LT Engines Genuine GM Complete Engine Set\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplication \u0026amp; Fitment\u003c\/h3\u003e\u003cp\u003eCompatible GM LS \/ engine-family applications shown for this product. Confirm the exact engine code and build before ordering. Manufacturer Part Number: GENVHEADBOLTSET\u003c\/p\u003e\u003ch3\u003eSupplied Contents\u003c\/h3\u003e\u003cp\u003eThe part or quantity described by this SKU is supplied. Related components, installation hardware and ancillary parts are separate unless explicitly stated.\u003c\/p\u003e\u003ch3\u003eInstallation \u0026amp; Configuration\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eConfirm the correct fastener size, length, thread, grade and application. Use the specified assembly lubricant, tightening sequence and torque\/angle procedure; do not substitute a generic torque value.\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eAssociated Products \u0026amp; Selection\u003c\/h3\u003e\u003cp\u003eBuilt by Boost \u0026amp; Tune can confirm the exact engine-specific supporting components and provide a complete parts recommendation before ordering.\u003c\/p\u003e\u003ch3\u003eProduct Selection \u0026amp; Workshop Support\u003c\/h3\u003e\u003cp\u003eBuilt by Boost \u0026amp; Tune is an authorised Crow Cams dealer and performance engine workshop. We can assist with the correct camshaft profile, compatible valve-train hardware, engine preparation, installation and calibration. Provide the exact engine code, intended use and existing components so the complete package can be checked before ordering.\u003c\/p\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eChevrolet Camaro 6Th Gen LT1\u003c\/li\u003e\n\u003cli\u003eChevrolet Camaro 6Th Gen Zl1 LT4\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eConfirm chassis, engine, drivetrain and production-year compatibility before ordering.\u003c\/p\u003e\u003ch2\u003eWorkshop Support\u003c\/h2\u003e\u003cp\u003eBuilt by Boost \u0026amp; Tune can assist with fitment review, installation, supporting modifications, configuration and calibration requirements where applicable.\u003c\/p\u003e\u003ch2\u003eInstallation Guidance\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eProfessional installation recommended:\u003c\/strong\u003e Professional installation is recommended for this listing.\u003c\/li\u003e\u003c\/ul\u003e\n\u003csection class=\"related-product-ranges\"\u003e\u003ch3\u003eExplore related ranges\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e\u003ca href=\"\/collections\/bbt-brand-crow-cams\"\u003eCrow Cams\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\u003c\/section\u003e","brand":"Crow Cams","offers":[{"title":"Default Title","offer_id":43772589834307,"sku":"GENVHEADBOLTSET","price":205.08,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/800x800-thumbnail-1668467064.GENVHEADBOLTSET.jpg?v=1788859467"},{"product_id":"diamond-special-order-chevrolet-gen-v-lt1-lt4-3-622-in-stroke-6-125-in-rod-1-304-in-ch","title":"Diamond Forged Piston Kit — Chevrolet Gen V LT1 \/ LT4 — 3.622 in stroke","description":"\u003cdiv class=\"bbt-diamond-advert\" style=\"line-height:1.65;\"\u003e\n\u003cdiv style=\"border-left:4px solid #0f536b;padding:4px 0 4px 18px;margin-bottom:22px;\"\u003e\n\u003cp style=\"font-size:0.8em;letter-spacing:0.12em;color:#52616d;margin:0 0 8px;\"\u003eDIAMOND PISTONS · SPECIAL ORDER\u003c\/p\u003e\n\u003ch2 style=\"margin:0 0 12px;\"\u003eChevrolet Gen V LT1 \/ LT4 forged piston kit\u003c\/h2\u003e\n\u003cp\u003eBuild your Chevrolet Gen V LT1 \/ LT4 rotating assembly around a Diamond \u003cstrong\u003e8-piston forged kit\u003c\/strong\u003e. Specify the finished bore, crown volume and gudgeon pins to suit your measured engine, fuel and intended use.\u003c\/p\u003e\n\u003cp style=\"margin:16px 0 0;color:#304652;\"\u003e\u003cstrong\u003eMade to order.\u003c\/strong\u003e Allow approximately \u003cstrong\u003e5–6 weeks for delivery\u003c\/strong\u003e, pending Australian customs processing time. Manufacturing schedules, international freight and customs clearance may extend this estimate.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003ch3\u003ePrecision in the details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2618 aluminium with an inboard forging and a fully machined underside of the crown.\u003c\/li\u003e\n\u003cli\u003e3D-machined crowns with valve pockets designed for Chevrolet Gen V LT1\/LT4 cylinder heads.\u003c\/li\u003e\n\u003cli\u003eMoly-coated skirts.\u003c\/li\u003e\n\u003cli\u003eThe selected ring package, gudgeon pins and retainers are included; use the exact kit table to confirm pin material and dimensions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRing-package selection:\u003c\/strong\u003e SKU 21605-RS-8 includes 1.5 \/ 1.5 \/ 3.0 mm rings. The other kits in this listing use 1.2 \/ 1.2 \/ 3.0 mm rings.\u003c\/p\u003e\n\u003ch3\u003eWhat your kit includes\u003c\/h3\u003e\n\u003cp\u003e8 forged pistons, the specified ring set, gudgeon pins and retainers. Oil-rail supports are supplied where indicated in the exact kit table.\u003c\/p\u003e\n\u003cp\u003eChoose the pin specification available for your selected bore and crown. Part numbers ending in \u003cstrong\u003e-H\u003c\/strong\u003e identify the H13 upgrade. Kit \u003cstrong\u003e21605-RS-8\u003c\/strong\u003e includes its specified \u003cstrong\u003eH9272250250C\u003c\/strong\u003e pins; choose the included-pin option for that kit. The displayed price covers the complete kit with the selected pin specification.\u003c\/p\u003e\n\u003ch3\u003eBuild dimensions\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto;margin:14px 0;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;font-size:0.9em;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003ePiston Quantity\u003c\/th\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003eCompression Height\u003c\/th\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e1.304 IN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003eStroke\u003c\/th\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e3.622 IN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003eRod Length\u003c\/th\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e6.125 IN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003eRing Set Thickness\u003c\/th\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eVaries by kit; see engineering reference below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003eForging Type\u003c\/th\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eInboard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cdetails class=\"bbt-diamond-engineering\" style=\"margin:20px 0;\"\u003e\u003csummary style=\"font-weight:700;color:#0f536b;cursor:pointer;\"\u003eEngineering reference: rings, pins and valve pockets\u003c\/summary\u003e\u003cp\u003eRing sizes are listed as top \/ second \/ oil ring. Check pin diameter and length against your connecting-rod small end. Valve-pocket depths are catalogue dimensions; your engine builder must check piston-to-valve clearance with the actual cylinder heads, camshafts and cam timing.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\u003ctable cellpadding=\"8\" style=\"width:100%;border-collapse:collapse;font-size:0.92em;\"\u003e\n\u003cthead style=\"background:#f3f5f7;text-align:left;\"\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eKit SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eRing package\u003c\/th\u003e\n\u003cth scope=\"col\"\u003ePin diameter\u003c\/th\u003e\n\u003cth scope=\"col\"\u003ePin length\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eValve-pocket depth: intake \/ exhaust\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e11535-R2-8\u003c\/td\u003e\n\u003ctd\u003e1.20 mm \/ 1.20 mm \/ 3.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.927 in\u003c\/td\u003e\n\u003ctd\u003e2.250 in\u003c\/td\u003e\n\u003ctd\u003e0.200 in \/ 0.200 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11535-R2-8-H\u003c\/td\u003e\n\u003ctd\u003e1.20 mm \/ 1.20 mm \/ 3.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.927 in\u003c\/td\u003e\n\u003ctd\u003e2.250 in\u003c\/td\u003e\n\u003ctd\u003e0.200 in \/ 0.200 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e21605-RS-8\u003c\/td\u003e\n\u003ctd\u003e1.50 mm \/ 1.50 mm \/ 3.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.927 in\u003c\/td\u003e\n\u003ctd\u003e2.250 in\u003c\/td\u003e\n\u003ctd\u003e0.200 in \/ 0.200 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11533-R2-8\u003c\/td\u003e\n\u003ctd\u003e1.20 mm \/ 1.20 mm \/ 3.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.927 in\u003c\/td\u003e\n\u003ctd\u003e2.250 in\u003c\/td\u003e\n\u003ctd\u003e0.200 in \/ 0.200 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11534-R2-8\u003c\/td\u003e\n\u003ctd\u003e1.20 mm \/ 1.20 mm \/ 3.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.927 in\u003c\/td\u003e\n\u003ctd\u003e2.250 in\u003c\/td\u003e\n\u003ctd\u003e0.200 in \/ 0.200 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11536-R2-8\u003c\/td\u003e\n\u003ctd\u003e1.20 mm \/ 1.20 mm \/ 3.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.927 in\u003c\/td\u003e\n\u003ctd\u003e2.250 in\u003c\/td\u003e\n\u003ctd\u003e0.200 in \/ 0.200 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11533-R2-8-H\u003c\/td\u003e\n\u003ctd\u003e1.20 mm \/ 1.20 mm \/ 3.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.927 in\u003c\/td\u003e\n\u003ctd\u003e2.250 in\u003c\/td\u003e\n\u003ctd\u003e0.200 in \/ 0.200 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11534-R2-8-H\u003c\/td\u003e\n\u003ctd\u003e1.20 mm \/ 1.20 mm \/ 3.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.927 in\u003c\/td\u003e\n\u003ctd\u003e2.250 in\u003c\/td\u003e\n\u003ctd\u003e0.200 in \/ 0.200 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11536-R2-8-H\u003c\/td\u003e\n\u003ctd\u003e1.20 mm \/ 1.20 mm \/ 3.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.927 in\u003c\/td\u003e\n\u003ctd\u003e2.250 in\u003c\/td\u003e\n\u003ctd\u003e0.200 in \/ 0.200 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp style=\"font-size:0.9em;color:#52616d;\"\u003eA dimension marked “Not published” needs confirmation with BBT before ordering. Catalogue dimensions do not specify running clearance or ring end gap; use the instructions supplied with your exact kit.\u003c\/p\u003e\u003c\/details\u003e\n\u003ch3\u003eFitment and engine preparation\u003c\/h3\u003e\n\u003cp\u003eFor Gen V direct-injection LT1\/LT4 builds with the listed crank, rods and bore. Confirm your head, fuel-injection crown geometry and block\/sleeve specification. Stroker kits require the matching crankshaft. Gen II LT1 engines use a different piston design.\u003c\/p\u003e\n\u003cp\u003eCatalogue bores are finished cylinder-bore sizes. The finished compression ratio depends on chamber volume, deck clearance and compressed head-gasket thickness. Have your engine builder verify piston-to-wall clearance, ring gaps, pin fit and piston-to-valve clearance using the supplied Diamond instructions before machining or assembly.\u003c\/p\u003e\n\u003cdetails style=\"border:1px solid #d9dee3;border-radius:4px;padding:14px 16px;margin:22px 0;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:700;\"\u003eView kit part numbers, bore sizes and supplied components\u003c\/summary\u003e\u003cdiv style=\"overflow-x:auto;margin:14px 0;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;font-size:0.9em;\"\u003e\n\u003cthead style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003e\u003ctr\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003eKit SKU\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003eBore\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003eCrown volume\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003eRatio\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003eIncluded pin\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003eRing set\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003eRetainer\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003eOil-rail supports\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e11535-R2-8\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e4.065 IN\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e-7.00 CC\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e10.80:1 nominal\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eG9272250185C\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e09454065\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e015111-16\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e21605-RS-8\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e4.125 IN\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e-12.00 CC\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e10.50:1 nominal\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eH9272250250C\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e09054125\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e015111-16\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e11535-R2-8-H\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e4.065 IN\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e-7.00 CC\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e10.80:1 nominal\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eH9272250225C\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e09454065\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e015111-16\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e11533-R2-8\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e4.065 IN\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e-1.50 CC\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e11.50:1 nominal\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eG9272250185C\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e09454065\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e015111-16\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e11533-R2-8-H\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e4.065 IN\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e-1.50 CC\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e11.50:1 nominal\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eH9272250225C\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e09454065\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e015111-16\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e11534-R2-8-H\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e4.070 IN\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e-1.50 CC\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e11.50:1 nominal\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eH9272250225C\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e09454070\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e015111-16\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e11536-R2-8\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e4.070 IN\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e-7.00 CC\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e10.80:1 nominal\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eG9272250185C\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e09454070\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e015111-16\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e11536-R2-8-H\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e4.070 IN\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e-7.00 CC\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e10.80:1 nominal\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eH9272250225C\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e09454070\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e015111-16\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e11534-R2-8\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e4.070 IN\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e-1.50 CC\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e11.50:1 nominal\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eG9272250185C\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e09454070\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e015111-16\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp style=\"font-size:0.9em;\"\u003eSelect the finished bore first, then a matching crown and nominal compression ratio, followed by an available gudgeon-pin specification. Pin choices depend on the selected bore and crown. Compression ratios are nominal catalogue figures; the final ratio depends on the measured chamber, deck and gasket volumes.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv style=\"background:#f3f5f7;border-left:4px solid #0f536b;padding:14px 18px;margin:22px 0;\"\u003e\n\u003ch3 style=\"margin:0 0 8px;\"\u003eMade to order · delivery\u003c\/h3\u003e\n\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eAllow approximately 5–6 weeks for delivery, pending Australian customs processing time.\u003c\/strong\u003e Manufacturing schedules, international freight and customs clearance may extend this estimate. Contact BBT before ordering for a build with a fixed deadline.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003ePlan your build with BBT\u003c\/h3\u003e\n\u003cp\u003eBuilt by Boost \u0026amp; Tune can help select a specification for your fuel, boost and intended use. Machining, engine assembly, connecting rods and tuning are purchased separately.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/bt-fit-engine-lt1\"\u003eBrowse related Chevrolet Gen V LT1 \/ LT4 engine parts\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp style=\"font-size:0.85em;color:#596773;\"\u003ePhotography shows a representative Diamond piston design. Crown shape, valve pockets, skirt finish and supplied components vary with the selected part number.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Diamond Pistons","offers":[{"title":"4.065 in \/ -7.00 cc \/ 10.80:1 nominal \/ Standard G-series","offer_id":67606781984835,"sku":"11535-R2-8","price":2460.0,"currency_code":"AUD","in_stock":true},{"title":"4.065 in \/ -7.00 cc \/ 10.80:1 nominal \/ H13 upgrade","offer_id":67607364698179,"sku":"11535-R2-8-H","price":2812.0,"currency_code":"AUD","in_stock":true},{"title":"4.125 in \/ -12.00 cc \/ 10.50:1 nominal \/ Included H9272250250C","offer_id":67606782017603,"sku":"21605-RS-8","price":3078.0,"currency_code":"AUD","in_stock":true},{"title":"4.065 in \/ -1.50 cc \/ 11.50:1 nominal \/ Standard G-series","offer_id":67607480074307,"sku":"11533-R2-8","price":2460.0,"currency_code":"AUD","in_stock":true},{"title":"4.070 in \/ -1.50 cc \/ 11.50:1 nominal \/ Standard G-series","offer_id":67607480107075,"sku":"11534-R2-8","price":2460.0,"currency_code":"AUD","in_stock":true},{"title":"4.070 in \/ -7.00 cc \/ 10.80:1 nominal \/ Standard G-series","offer_id":67607480139843,"sku":"11536-R2-8","price":2460.0,"currency_code":"AUD","in_stock":true},{"title":"4.065 in \/ -1.50 cc \/ 11.50:1 nominal \/ H13 upgrade","offer_id":67607480172611,"sku":"11533-R2-8-H","price":2812.0,"currency_code":"AUD","in_stock":true},{"title":"4.070 in \/ -1.50 cc \/ 11.50:1 nominal \/ H13 upgrade","offer_id":67607480205379,"sku":"11534-R2-8-H","price":2812.0,"currency_code":"AUD","in_stock":true},{"title":"4.070 in \/ -7.00 cc \/ 10.80:1 nominal \/ H13 upgrade","offer_id":67607480238147,"sku":"11536-R2-8-H","price":2812.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/F26084_5291.jpg?v=1791003708"},{"product_id":"diamond-special-order-chevrolet-gen-v-lt1-lt4-4-000-in-stroke-6-125-in-rod-1-115-in-ch","title":"Diamond Forged Piston Kit — Chevrolet Gen V LT1 \/ LT4 — 4.000 in stroke","description":"\u003cdiv class=\"bbt-diamond-advert\" style=\"line-height:1.65;\"\u003e\n\u003cdiv style=\"border-left:4px solid #0f536b;padding:4px 0 4px 18px;margin-bottom:22px;\"\u003e\n\u003cp style=\"font-size:0.8em;letter-spacing:0.12em;color:#52616d;margin:0 0 8px;\"\u003eDIAMOND PISTONS · SPECIAL ORDER\u003c\/p\u003e\n\u003ch2 style=\"margin:0 0 12px;\"\u003eChevrolet Gen V LT1 \/ LT4 forged piston kit\u003c\/h2\u003e\n\u003cp\u003eBuild your Chevrolet Gen V LT1 \/ LT4 rotating assembly around a Diamond \u003cstrong\u003e8-piston forged kit\u003c\/strong\u003e. Confirm the listed bore, crown volume and supplied gudgeon pins against your measured engine, fuel and intended use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStroker configuration:\u003c\/strong\u003e this kit requires the stated crankshaft stroke and connecting-rod geometry.\u003c\/p\u003e\n\u003cp style=\"margin:16px 0 0;color:#304652;\"\u003e\u003cstrong\u003eMade to order.\u003c\/strong\u003e Allow approximately \u003cstrong\u003e5–6 weeks for delivery\u003c\/strong\u003e, pending Australian customs processing time. Manufacturing schedules, international freight and customs clearance may extend this estimate.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003ch3\u003ePrecision in the details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2618 aluminium with an inboard forging profile.\u003c\/li\u003e\n\u003cli\u003eOil-ring-fed pin lubrication and fitted gudgeon pins.\u003c\/li\u003e\n\u003cli\u003eMoly-coated skirts and 3D-machined valve pockets.\u003c\/li\u003e\n\u003cli\u003eThe specified ring set, pins, retainers and oil-rail supports are included.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat your kit includes\u003c\/h3\u003e\n\u003cp\u003e8 forged pistons, the specified ring set, gudgeon pins and retainers. Oil-rail supports are supplied where indicated in the exact kit table.\u003c\/p\u003e\n\u003cp\u003eStreet\/strip kits offer \u003cstrong\u003estandard G-series pins\u003c\/strong\u003e or the \u003cstrong\u003eH13 upgrade\u003c\/strong\u003e where listed. RS kits include \u003cstrong\u003eH9272250250C pins\u003c\/strong\u003e at the displayed kit price. Check the exact pin code and ring package in the tables before selecting connecting rods or replacement rings.\u003c\/p\u003e\n\u003ch3\u003eBuild dimensions\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto;margin:14px 0;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;font-size:0.9em;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003ePiston Quantity\u003c\/th\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003eCompression Height\u003c\/th\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e1.115 IN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003eStroke\u003c\/th\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e4.000 IN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003eRod Length\u003c\/th\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e6.125 IN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003eRing Set Thickness\u003c\/th\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eVaries by kit — see engineering reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003eForging Type\u003c\/th\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eInboard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cdetails class=\"bbt-diamond-engineering\" style=\"margin:20px 0;\"\u003e\u003csummary style=\"font-weight:700;color:#0f536b;cursor:pointer;\"\u003eEngineering reference: rings, pins and valve pockets\u003c\/summary\u003e\u003cp\u003eRing sizes are listed as top \/ second \/ oil ring. Check pin diameter and length against your connecting-rod small end. Valve-pocket depths are catalogue dimensions; your engine builder must check piston-to-valve clearance with the actual cylinder heads, camshafts and cam timing.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\u003ctable cellpadding=\"8\" style=\"width:100%;border-collapse:collapse;font-size:0.92em;\"\u003e\n\u003cthead style=\"background:#f3f5f7;text-align:left;\"\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eKit SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eRing package\u003c\/th\u003e\n\u003cth scope=\"col\"\u003ePin diameter\u003c\/th\u003e\n\u003cth scope=\"col\"\u003ePin length\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eValve-pocket depth: intake \/ exhaust\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e21607-RS-8\u003c\/td\u003e\n\u003ctd\u003e1.50 mm \/ 1.50 mm \/ 3.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.927 in\u003c\/td\u003e\n\u003ctd\u003eNot published\u003c\/td\u003e\n\u003ctd\u003e0.200 in \/ 0.200 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11539-R2-8\u003c\/td\u003e\n\u003ctd\u003e1.20 mm \/ 1.20 mm \/ 3.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.927 in\u003c\/td\u003e\n\u003ctd\u003eNot published\u003c\/td\u003e\n\u003ctd\u003e0.200 in \/ 0.200 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11539-R2-8-H\u003c\/td\u003e\n\u003ctd\u003e1.20 mm \/ 1.20 mm \/ 3.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.927 in\u003c\/td\u003e\n\u003ctd\u003eNot published\u003c\/td\u003e\n\u003ctd\u003e0.200 in \/ 0.200 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11549-R2-8\u003c\/td\u003e\n\u003ctd\u003e1.20 mm \/ 1.20 mm \/ 3.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.927 in\u003c\/td\u003e\n\u003ctd\u003eNot published\u003c\/td\u003e\n\u003ctd\u003e0.200 in \/ 0.200 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11549-R2-8-H\u003c\/td\u003e\n\u003ctd\u003e1.20 mm \/ 1.20 mm \/ 3.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.927 in\u003c\/td\u003e\n\u003ctd\u003eNot published\u003c\/td\u003e\n\u003ctd\u003e0.200 in \/ 0.200 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11569-R2-8\u003c\/td\u003e\n\u003ctd\u003e1.20 mm \/ 1.20 mm \/ 3.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.927 in\u003c\/td\u003e\n\u003ctd\u003eNot published\u003c\/td\u003e\n\u003ctd\u003e0.200 in \/ 0.200 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11569-R2-8-H\u003c\/td\u003e\n\u003ctd\u003e1.20 mm \/ 1.20 mm \/ 3.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.927 in\u003c\/td\u003e\n\u003ctd\u003eNot published\u003c\/td\u003e\n\u003ctd\u003e0.200 in \/ 0.200 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11587-R2-8\u003c\/td\u003e\n\u003ctd\u003e1.20 mm \/ 1.20 mm \/ 3.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.927 in\u003c\/td\u003e\n\u003ctd\u003eNot published\u003c\/td\u003e\n\u003ctd\u003e0.200 in \/ 0.200 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11587-R2-8-H\u003c\/td\u003e\n\u003ctd\u003e1.20 mm \/ 1.20 mm \/ 3.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.927 in\u003c\/td\u003e\n\u003ctd\u003eNot published\u003c\/td\u003e\n\u003ctd\u003e0.200 in \/ 0.200 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11594-R2-8\u003c\/td\u003e\n\u003ctd\u003e1.20 mm \/ 1.20 mm \/ 3.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.927 in\u003c\/td\u003e\n\u003ctd\u003eNot published\u003c\/td\u003e\n\u003ctd\u003e0.200 in \/ 0.200 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11594-R2-8-H\u003c\/td\u003e\n\u003ctd\u003e1.20 mm \/ 1.20 mm \/ 3.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.927 in\u003c\/td\u003e\n\u003ctd\u003eNot published\u003c\/td\u003e\n\u003ctd\u003e0.200 in \/ 0.200 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11597-R2-8\u003c\/td\u003e\n\u003ctd\u003e1.20 mm \/ 1.20 mm \/ 3.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.927 in\u003c\/td\u003e\n\u003ctd\u003eNot published\u003c\/td\u003e\n\u003ctd\u003e0.200 in \/ 0.200 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11597-R2-8-H\u003c\/td\u003e\n\u003ctd\u003e1.20 mm \/ 1.20 mm \/ 3.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.927 in\u003c\/td\u003e\n\u003ctd\u003eNot published\u003c\/td\u003e\n\u003ctd\u003e0.200 in \/ 0.200 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e21606-RS-8\u003c\/td\u003e\n\u003ctd\u003e1.50 mm \/ 1.50 mm \/ 3.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.927 in\u003c\/td\u003e\n\u003ctd\u003eNot published\u003c\/td\u003e\n\u003ctd\u003e0.200 in \/ 0.200 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e21608-RS-8\u003c\/td\u003e\n\u003ctd\u003e1.50 mm \/ 1.50 mm \/ 3.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.927 in\u003c\/td\u003e\n\u003ctd\u003eNot published\u003c\/td\u003e\n\u003ctd\u003e0.200 in \/ 0.200 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e21609-RS-8\u003c\/td\u003e\n\u003ctd\u003e1.50 mm \/ 1.50 mm \/ 3.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.927 in\u003c\/td\u003e\n\u003ctd\u003eNot published\u003c\/td\u003e\n\u003ctd\u003e0.200 in \/ 0.200 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e21610-RS-8\u003c\/td\u003e\n\u003ctd\u003e1.50 mm \/ 1.50 mm \/ 3.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.927 in\u003c\/td\u003e\n\u003ctd\u003eNot published\u003c\/td\u003e\n\u003ctd\u003e0.200 in \/ 0.200 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e21611-RS-8\u003c\/td\u003e\n\u003ctd\u003e1.50 mm \/ 1.50 mm \/ 3.00 mm\u003c\/td\u003e\n\u003ctd\u003e0.927 in\u003c\/td\u003e\n\u003ctd\u003eNot published\u003c\/td\u003e\n\u003ctd\u003e0.200 in \/ 0.200 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp style=\"font-size:0.9em;color:#52616d;\"\u003eA dimension marked “Not published” needs confirmation with BBT before ordering. Catalogue dimensions do not specify running clearance or ring end gap; use the instructions supplied with your exact kit.\u003c\/p\u003e\u003c\/details\u003e\n\u003ch3\u003eFitment and engine preparation\u003c\/h3\u003e\n\u003cp\u003eFor Gen V direct-injection LT1\/LT4 builds with the listed crank, rods and bore. Confirm your head, fuel-injection crown geometry and block\/sleeve specification. Stroker kits require the matching crankshaft. Gen II LT1 engines use a different piston design.\u003c\/p\u003e\n\u003cp\u003eCatalogue bores are finished cylinder-bore sizes. The finished compression ratio depends on chamber volume, deck clearance and compressed head-gasket thickness. Have your engine builder verify piston-to-wall clearance, ring gaps, pin fit and piston-to-valve clearance using the supplied Diamond instructions before machining or assembly.\u003c\/p\u003e\n\u003cdetails style=\"border:1px solid #d9dee3;border-radius:4px;padding:14px 16px;margin:22px 0;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:700;\"\u003eView kit part numbers, bore sizes and supplied components\u003c\/summary\u003e\u003cdiv style=\"overflow-x:auto;margin:14px 0;\"\u003e\u003ctable cellpadding=\"10\" style=\"width:100%;border-collapse:collapse;font-size:0.9em;\"\u003e\n\u003cthead style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003e\u003ctr style=\"border-bottom:1px solid #e5e9ed;\"\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003eKit SKU\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003eBore\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003eCrown volume\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003eRatio\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003eIncluded pin\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003eRing set\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003eRetainer\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #d9dee3;background:#f3f5f7;\"\u003eOil-rail supports\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e9ed;\"\u003e\n\u003ctd\u003e21607-RS-8\u003c\/td\u003e\n\u003ctd\u003e4.070 IN\u003c\/td\u003e\n\u003ctd\u003e-10.00 CC\u003c\/td\u003e\n\u003ctd\u003e11.50:1 nominal\u003c\/td\u003e\n\u003ctd\u003eH9272250250C\u003c\/td\u003e\n\u003ctd\u003e09054070\u003c\/td\u003e\n\u003ctd\u003e015111-16\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e9ed;\"\u003e\n\u003ctd\u003e11539-R2-8\u003c\/td\u003e\n\u003ctd\u003e4.065 IN\u003c\/td\u003e\n\u003ctd\u003e-16.00 CC\u003c\/td\u003e\n\u003ctd\u003e10.70:1 nominal\u003c\/td\u003e\n\u003ctd\u003eG9272250185C\u003c\/td\u003e\n\u003ctd\u003e09454065\u003c\/td\u003e\n\u003ctd\u003e015111-16\u003c\/td\u003e\n\u003ctd\u003eYes — 019010060-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e9ed;\"\u003e\n\u003ctd\u003e11539-R2-8-H\u003c\/td\u003e\n\u003ctd\u003e4.065 IN\u003c\/td\u003e\n\u003ctd\u003e-16.00 CC\u003c\/td\u003e\n\u003ctd\u003e10.70:1 nominal\u003c\/td\u003e\n\u003ctd\u003eH9272250225C\u003c\/td\u003e\n\u003ctd\u003e09454065\u003c\/td\u003e\n\u003ctd\u003e015111-16\u003c\/td\u003e\n\u003ctd\u003eYes — 019010060-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e9ed;\"\u003e\n\u003ctd\u003e11549-R2-8\u003c\/td\u003e\n\u003ctd\u003e4.070 IN\u003c\/td\u003e\n\u003ctd\u003e-16.00 CC\u003c\/td\u003e\n\u003ctd\u003e10.70:1 nominal\u003c\/td\u003e\n\u003ctd\u003eG9272250185C\u003c\/td\u003e\n\u003ctd\u003e09454070\u003c\/td\u003e\n\u003ctd\u003e015111-16\u003c\/td\u003e\n\u003ctd\u003eYes — 019010060-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e9ed;\"\u003e\n\u003ctd\u003e11549-R2-8-H\u003c\/td\u003e\n\u003ctd\u003e4.070 IN\u003c\/td\u003e\n\u003ctd\u003e-16.00 CC\u003c\/td\u003e\n\u003ctd\u003e10.70:1 nominal\u003c\/td\u003e\n\u003ctd\u003eH9272250225C\u003c\/td\u003e\n\u003ctd\u003e09454070\u003c\/td\u003e\n\u003ctd\u003e015111-16\u003c\/td\u003e\n\u003ctd\u003eYes — 019010060-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e9ed;\"\u003e\n\u003ctd\u003e11569-R2-8\u003c\/td\u003e\n\u003ctd\u003e4.065 IN\u003c\/td\u003e\n\u003ctd\u003e-9.00 CC\u003c\/td\u003e\n\u003ctd\u003e11.50:1 nominal\u003c\/td\u003e\n\u003ctd\u003eG9272250185C\u003c\/td\u003e\n\u003ctd\u003e09454065\u003c\/td\u003e\n\u003ctd\u003e015111-16\u003c\/td\u003e\n\u003ctd\u003eYes — 019010060-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e9ed;\"\u003e\n\u003ctd\u003e11569-R2-8-H\u003c\/td\u003e\n\u003ctd\u003e4.065 IN\u003c\/td\u003e\n\u003ctd\u003e-9.00 CC\u003c\/td\u003e\n\u003ctd\u003e11.50:1 nominal\u003c\/td\u003e\n\u003ctd\u003eH9272250225C\u003c\/td\u003e\n\u003ctd\u003e09454065\u003c\/td\u003e\n\u003ctd\u003e015111-16\u003c\/td\u003e\n\u003ctd\u003eYes — 019010060-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e9ed;\"\u003e\n\u003ctd\u003e11587-R2-8\u003c\/td\u003e\n\u003ctd\u003e4.070 IN\u003c\/td\u003e\n\u003ctd\u003e-9.00 CC\u003c\/td\u003e\n\u003ctd\u003e11.50:1 nominal\u003c\/td\u003e\n\u003ctd\u003eG9272250185C\u003c\/td\u003e\n\u003ctd\u003e09454070\u003c\/td\u003e\n\u003ctd\u003e015111-16\u003c\/td\u003e\n\u003ctd\u003eYes — 019010060-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e9ed;\"\u003e\n\u003ctd\u003e11587-R2-8-H\u003c\/td\u003e\n\u003ctd\u003e4.070 IN\u003c\/td\u003e\n\u003ctd\u003e-9.00 CC\u003c\/td\u003e\n\u003ctd\u003e11.50:1 nominal\u003c\/td\u003e\n\u003ctd\u003eH9272250225C\u003c\/td\u003e\n\u003ctd\u003e09454070\u003c\/td\u003e\n\u003ctd\u003e015111-16\u003c\/td\u003e\n\u003ctd\u003eYes — 019010060-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e9ed;\"\u003e\n\u003ctd\u003e11594-R2-8\u003c\/td\u003e\n\u003ctd\u003e4.125 IN\u003c\/td\u003e\n\u003ctd\u003e-11.00 CC\u003c\/td\u003e\n\u003ctd\u003e11.50:1 nominal\u003c\/td\u003e\n\u003ctd\u003eG9272250185C\u003c\/td\u003e\n\u003ctd\u003e09454125\u003c\/td\u003e\n\u003ctd\u003e015111-16\u003c\/td\u003e\n\u003ctd\u003eYes — 019010120-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e9ed;\"\u003e\n\u003ctd\u003e11594-R2-8-H\u003c\/td\u003e\n\u003ctd\u003e4.125 IN\u003c\/td\u003e\n\u003ctd\u003e-11.00 CC\u003c\/td\u003e\n\u003ctd\u003e11.50:1 nominal\u003c\/td\u003e\n\u003ctd\u003eH9272250225C\u003c\/td\u003e\n\u003ctd\u003e09454125\u003c\/td\u003e\n\u003ctd\u003e015111-16\u003c\/td\u003e\n\u003ctd\u003eYes — 019010120-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e9ed;\"\u003e\n\u003ctd\u003e11597-R2-8\u003c\/td\u003e\n\u003ctd\u003e4.125 IN\u003c\/td\u003e\n\u003ctd\u003e-19.00 CC\u003c\/td\u003e\n\u003ctd\u003e10.60:1 nominal\u003c\/td\u003e\n\u003ctd\u003eG9272250185C\u003c\/td\u003e\n\u003ctd\u003e09454125\u003c\/td\u003e\n\u003ctd\u003e015111-16\u003c\/td\u003e\n\u003ctd\u003eYes — 019010120-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e9ed;\"\u003e\n\u003ctd\u003e11597-R2-8-H\u003c\/td\u003e\n\u003ctd\u003e4.125 IN\u003c\/td\u003e\n\u003ctd\u003e-19.00 CC\u003c\/td\u003e\n\u003ctd\u003e10.60:1 nominal\u003c\/td\u003e\n\u003ctd\u003eH9272250225C\u003c\/td\u003e\n\u003ctd\u003e09454125\u003c\/td\u003e\n\u003ctd\u003e015111-16\u003c\/td\u003e\n\u003ctd\u003eYes — 019010120-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e9ed;\"\u003e\n\u003ctd\u003e21606-RS-8\u003c\/td\u003e\n\u003ctd\u003e4.065 IN\u003c\/td\u003e\n\u003ctd\u003e-10.00 CC\u003c\/td\u003e\n\u003ctd\u003e11.50:1 nominal\u003c\/td\u003e\n\u003ctd\u003eH9272250250C\u003c\/td\u003e\n\u003ctd\u003e09054065\u003c\/td\u003e\n\u003ctd\u003e015111-16\u003c\/td\u003e\n\u003ctd\u003eYes — 019010060-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e9ed;\"\u003e\n\u003ctd\u003e21608-RS-8\u003c\/td\u003e\n\u003ctd\u003e4.125 IN\u003c\/td\u003e\n\u003ctd\u003e-12.00 CC\u003c\/td\u003e\n\u003ctd\u003e11.50:1 nominal\u003c\/td\u003e\n\u003ctd\u003eH9272250250C\u003c\/td\u003e\n\u003ctd\u003e09054125\u003c\/td\u003e\n\u003ctd\u003e015111-16\u003c\/td\u003e\n\u003ctd\u003eYes — 019010120-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e9ed;\"\u003e\n\u003ctd\u003e21609-RS-8\u003c\/td\u003e\n\u003ctd\u003e4.065 IN\u003c\/td\u003e\n\u003ctd\u003e-18.00 CC\u003c\/td\u003e\n\u003ctd\u003e10.50:1 nominal\u003c\/td\u003e\n\u003ctd\u003eH9272250250C\u003c\/td\u003e\n\u003ctd\u003e09054065\u003c\/td\u003e\n\u003ctd\u003e015111-16\u003c\/td\u003e\n\u003ctd\u003eYes — 019010060-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e9ed;\"\u003e\n\u003ctd\u003e21610-RS-8\u003c\/td\u003e\n\u003ctd\u003e4.070 IN\u003c\/td\u003e\n\u003ctd\u003e-18.00 CC\u003c\/td\u003e\n\u003ctd\u003e10.50:1 nominal\u003c\/td\u003e\n\u003ctd\u003eH9272250250C\u003c\/td\u003e\n\u003ctd\u003e09054070\u003c\/td\u003e\n\u003ctd\u003e015111-16\u003c\/td\u003e\n\u003ctd\u003eYes — 019010060-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e5e9ed;\"\u003e\n\u003ctd\u003e21611-RS-8\u003c\/td\u003e\n\u003ctd\u003e4.125 IN\u003c\/td\u003e\n\u003ctd\u003e-21.00 CC\u003c\/td\u003e\n\u003ctd\u003e10.50:1 nominal\u003c\/td\u003e\n\u003ctd\u003eH9272250250C\u003c\/td\u003e\n\u003ctd\u003e09054125\u003c\/td\u003e\n\u003ctd\u003e015111-16\u003c\/td\u003e\n\u003ctd\u003eYes — 019010120-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp style=\"font-size:0.9em;\"\u003eChoose the finished bore first, then the listed crown volume and nominal ratio, then the available gudgeon-pin specification. Only combinations listed in the kit table are offered. RS kits use their included H9272250250C pins and a 1.50 \/ 1.50 \/ 3.00 mm ring package; street\/strip kits use 1.20 \/ 1.20 \/ 3.00 mm rings. Compression ratios are nominal catalogue figures; the final ratio depends on the measured chamber, deck and gasket volumes.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv style=\"background:#f3f5f7;border-left:4px solid #0f536b;padding:14px 18px;margin:22px 0;\"\u003e\n\u003ch3 style=\"margin:0 0 8px;\"\u003eMade to order · delivery\u003c\/h3\u003e\n\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eAllow approximately 5–6 weeks for delivery, pending Australian customs processing time.\u003c\/strong\u003e Manufacturing schedules, international freight and customs clearance may extend this estimate. Contact BBT before ordering for a build with a fixed deadline.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003ePlan your build with BBT\u003c\/h3\u003e\n\u003cp\u003eBuilt by Boost \u0026amp; Tune can help select a specification for your fuel, boost and intended use. Machining, engine assembly, connecting rods and tuning are purchased separately.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/bt-fit-engine-lt1\"\u003eBrowse related Chevrolet Gen V LT1 \/ LT4 engine parts\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp style=\"font-size:0.85em;color:#596773;\"\u003ePhotography shows a representative Diamond piston design. Crown shape, valve pockets, skirt finish and supplied components vary with the selected part number.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Diamond Pistons","offers":[{"title":"4.070 in \/ -10.00 cc \/ 11.50:1 nominal \/ Included H9272250250C","offer_id":67606782050371,"sku":"21607-RS-8","price":3078.0,"currency_code":"AUD","in_stock":true},{"title":"4.065 in \/ -16.00 cc \/ 10.70:1 nominal \/ Standard G-series","offer_id":67625196847171,"sku":"11539-R2-8","price":2460.0,"currency_code":"AUD","in_stock":true},{"title":"4.065 in \/ -16.00 cc \/ 10.70:1 nominal \/ H13 upgrade","offer_id":67625196879939,"sku":"11539-R2-8-H","price":2812.0,"currency_code":"AUD","in_stock":true},{"title":"4.070 in \/ -16.00 cc \/ 10.70:1 nominal \/ Standard G-series","offer_id":67625196912707,"sku":"11549-R2-8","price":2460.0,"currency_code":"AUD","in_stock":true},{"title":"4.070 in \/ -16.00 cc \/ 10.70:1 nominal \/ H13 upgrade","offer_id":67625196945475,"sku":"11549-R2-8-H","price":2812.0,"currency_code":"AUD","in_stock":true},{"title":"4.065 in \/ -9.00 cc \/ 11.50:1 nominal \/ Standard G-series","offer_id":67625196978243,"sku":"11569-R2-8","price":2460.0,"currency_code":"AUD","in_stock":true},{"title":"4.065 in \/ -9.00 cc \/ 11.50:1 nominal \/ H13 upgrade","offer_id":67625197011011,"sku":"11569-R2-8-H","price":2812.0,"currency_code":"AUD","in_stock":true},{"title":"4.070 in \/ -9.00 cc \/ 11.50:1 nominal \/ Standard G-series","offer_id":67625197043779,"sku":"11587-R2-8","price":2460.0,"currency_code":"AUD","in_stock":true},{"title":"4.070 in \/ -9.00 cc \/ 11.50:1 nominal \/ H13 upgrade","offer_id":67625197076547,"sku":"11587-R2-8-H","price":2812.0,"currency_code":"AUD","in_stock":true},{"title":"4.125 in \/ -11.00 cc \/ 11.50:1 nominal \/ Standard G-series","offer_id":67625197109315,"sku":"11594-R2-8","price":2460.0,"currency_code":"AUD","in_stock":true},{"title":"4.125 in \/ -11.00 cc \/ 11.50:1 nominal \/ H13 upgrade","offer_id":67625197142083,"sku":"11594-R2-8-H","price":2812.0,"currency_code":"AUD","in_stock":true},{"title":"4.125 in \/ -19.00 cc \/ 10.60:1 nominal \/ Standard G-series","offer_id":67625197174851,"sku":"11597-R2-8","price":2460.0,"currency_code":"AUD","in_stock":true},{"title":"4.125 in \/ -19.00 cc \/ 10.60:1 nominal \/ H13 upgrade","offer_id":67625197207619,"sku":"11597-R2-8-H","price":2812.0,"currency_code":"AUD","in_stock":true},{"title":"4.065 in \/ -10.00 cc \/ 11.50:1 nominal \/ Included H9272250250C","offer_id":67625197240387,"sku":"21606-RS-8","price":3078.0,"currency_code":"AUD","in_stock":true},{"title":"4.125 in \/ -12.00 cc \/ 11.50:1 nominal \/ Included H9272250250C","offer_id":67625197273155,"sku":"21608-RS-8","price":3078.0,"currency_code":"AUD","in_stock":true},{"title":"4.065 in \/ -18.00 cc \/ 10.50:1 nominal \/ Included H9272250250C","offer_id":67625197305923,"sku":"21609-RS-8","price":3078.0,"currency_code":"AUD","in_stock":true},{"title":"4.070 in \/ -18.00 cc \/ 10.50:1 nominal \/ Included H9272250250C","offer_id":67625197338691,"sku":"21610-RS-8","price":3078.0,"currency_code":"AUD","in_stock":true},{"title":"4.125 in \/ -21.00 cc \/ 10.50:1 nominal \/ Included H9272250250C","offer_id":67625197371459,"sku":"21611-RS-8","price":3078.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/F26084_647.jpg?v=1791003711"}],"url":"https:\/\/builtbyboostandtune.com.au\/collections\/bt-fit-engine-lt4.oembed","provider":"BUILT BY BOOST AND TUNE","version":"1.0","type":"link"}