{"product_id":"diamond-special-order-gm-ls3-l92-3-622-in-stroke-6-125-in-rod-1-304-in-ch","title":"Diamond Forged Piston Kit — GM LS3 \/ L92 — 3.622 in stroke","description":"\u003ch2\u003eDiamond forged pistons for GM LS3 \/ L92\u003c\/h2\u003e\u003cp\u003eChoose a 8-piston kit to suit your measured engine and planned rotating assembly. The selector identifies the catalogue bore, piston crown volume, nominal compression ratio where published, and supplied gudgeon-pin option.\u003c\/p\u003e\u003cp\u003e\u003cem\u003ePhoto: representative Diamond piston catalogue image. Crown shape, valve reliefs, skirt finish and supplied components may differ by the selected part number. Use the kit specifications and option selectors to confirm your order.\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eMade to order and delivery\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eThese pistons are supplied by BBT as special-order, made-to-order items. Allow approximately 5–6 weeks for delivery, pending Australian customs processing time.\u003c\/strong\u003e Supplier manufacturing schedules, international freight and customs clearance can extend the estimate. Contact BBT before ordering for a time-critical build.\u003c\/p\u003e\u003ch3\u003eIncluded components and build dimensions\u003c\/h3\u003e\u003cp\u003e2618 aluminium forged pistons, the listed ring set, gudgeon pins and retainers are included. Part numbers ending in -H select the upgraded H13 pin kit at the displayed additional price. Each option is a complete kit.\u003c\/p\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003ePiston Quantity\u003c\/th\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompression Height\u003c\/th\u003e\n\u003ctd\u003e1.304 IN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003ctd\u003e3.622 IN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRod Length\u003c\/th\u003e\n\u003ctd\u003e6.125 IN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRing Set Thickness\u003c\/th\u003e\n\u003ctd\u003e1.20 MM x 1.20 MM x 3.00 MM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eForging Type\u003c\/th\u003e\n\u003ctd\u003eFull Round\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eKit selection\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eKit SKU\u003c\/th\u003e\n\u003cth\u003eBore\u003c\/th\u003e\n\u003cth\u003eCrown volume\u003c\/th\u003e\n\u003cth\u003eRatio\u003c\/th\u003e\n\u003cth\u003eIncluded pin\u003c\/th\u003e\n\u003cth\u003eRing set\u003c\/th\u003e\n\u003cth\u003eRetainer\u003c\/th\u003e\n\u003cth\u003eOil-rail supports\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e11543-R1-8-H\u003c\/td\u003e\n\u003ctd\u003e4.065 IN\u003c\/td\u003e\n\u003ctd\u003e-2.00 CC\u003c\/td\u003e\n\u003ctd\u003e10.40:1 nominal\u003c\/td\u003e\n\u003ctd\u003eH9272500225\u003c\/td\u003e\n\u003ctd\u003e09454065\u003c\/td\u003e\n\u003ctd\u003e015104-32\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11545-R1-8\u003c\/td\u003e\n\u003ctd\u003e4.070 IN\u003c\/td\u003e\n\u003ctd\u003e-2.00 CC\u003c\/td\u003e\n\u003ctd\u003e10.50:1 nominal\u003c\/td\u003e\n\u003ctd\u003eG9272500185\u003c\/td\u003e\n\u003ctd\u003e09454070\u003c\/td\u003e\n\u003ctd\u003e015104-32\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eFitment and assembly\u003c\/h3\u003e\u003cp\u003eFor LS3\/L92 builds with the selected bore and listed crank\/rod dimensions. The 4.000 in stroke group requires a matching stroker crank. Confirm cylinder-head valve layout, sleeves, deck height and pin-retainer system before ordering. Oversize bores require block assessment and machining.\u003c\/p\u003e\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\u003ch3\u003eBBT workshop support\u003c\/h3\u003e\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\u003cp\u003e\u003ca href=\"\/collections\/bt-fit-engine-ls\"\u003eBrowse related GM LS3 \/ L92 engine parts\u003c\/a\u003e.\u003c\/p\u003e","brand":"Diamond Pistons","offers":[{"title":"4.065 in \/ -2.00 cc \/ 10.40:1 nominal \/ H13 upgrade","offer_id":67606782083139,"sku":"11543-R1-8-H","price":2279.0,"currency_code":"AUD","in_stock":true},{"title":"4.070 in \/ -2.00 cc \/ 10.50:1 nominal \/ Standard G-series","offer_id":67606782115907,"sku":"11545-R1-8","price":2460.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/F26084_8825.jpg?v=1791003711","url":"https:\/\/builtbyboostandtune.com.au\/products\/diamond-special-order-gm-ls3-l92-3-622-in-stroke-6-125-in-rod-1-304-in-ch","provider":"BUILT BY BOOST AND TUNE","version":"1.0","type":"link"}