{"product_id":"diamond-special-order-gm-ls9-lsa-3-622-stroke-6-125-rod-1-304-ch","title":"Diamond Forged Pistons - GM LS9 \/ LSA - 3.622 in Stroke, 6.125 in Rod","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;\"\u003eGM LS9 \/ LSA forged piston kit\u003c\/h2\u003e\n\u003cp\u003eBuild your GM LS9 \/ LSA 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\u003eForged 2618 aluminium construction, machined in the USA.\u003c\/li\u003e\n\u003cli\u003eMachined crown and valve-relief profiles; verify the chosen cylinder head and camshaft combination.\u003c\/li\u003e\n\u003cli\u003eOffset pins and moly-coated skirts.\u003c\/li\u003e\n\u003cli\u003eTrend gudgeon pins, the listed ring set and pin retainers included.\u003c\/li\u003e\n\u003cli\u003eCatalogue compression figures use a 0.040-inch head gasket; actual ratio depends on the measured engine assembly.\u003c\/li\u003e\n\u003cli\u003eTop compression ring positioned 0.250 in below the crown.\u003c\/li\u003e\n\u003cli\u003eCatalogue valve-pocket depths: 0.178 in intake \/ 0.108 in exhaust. Verify piston-to-valve clearance with the actual cylinder heads, camshaft and valve timing.\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\u003eChoose the standard gudgeon-pin kit or the \u003cstrong\u003eH13 upgrade\u003c\/strong\u003e in the selector. Part numbers ending in \u003cstrong\u003e-H\u003c\/strong\u003e identify the upgraded pin kit; the displayed price covers the complete piston kit with that pin specification.\u003c\/p\u003e\n\u003ch3\u003eBuild dimensions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCrankshaft stroke: 3.622 inch\u003c\/li\u003e\n\u003cli\u003eConnecting-rod length: 6.125 inch\u003c\/li\u003e\n\u003cli\u003eCompression height: 1.304 inch\u003c\/li\u003e\n\u003cli\u003eGudgeon-pin diameter: 0.927 inch\u003c\/li\u003e\n\u003cli\u003eQuantity: eight pistons; rings, pins and retainers included. Oil-rail supports are included where indicated in the kit table.\u003c\/li\u003e\n\u003c\/ul\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\u003e11588-R1-8\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\u003e2.500 in\u003c\/td\u003e\n\u003ctd\u003e0.178 in \/ 0.108 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11589-R1-8\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\u003e2.500 in\u003c\/td\u003e\n\u003ctd\u003e0.178 in \/ 0.108 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11577-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\u003e2.500 in\u003c\/td\u003e\n\u003ctd\u003e0.176 in \/ 0.105 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11578-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\u003e2.500 in\u003c\/td\u003e\n\u003ctd\u003e0.176 in \/ 0.105 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11588-R1-8-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\u003e2.500 in\u003c\/td\u003e\n\u003ctd\u003e0.178 in \/ 0.108 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11589-R1-8-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\u003e2.500 in\u003c\/td\u003e\n\u003ctd\u003e0.178 in \/ 0.108 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11577-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\u003e2.500 in\u003c\/td\u003e\n\u003ctd\u003e0.176 in \/ 0.105 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11578-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\u003e2.500 in\u003c\/td\u003e\n\u003ctd\u003e0.176 in \/ 0.105 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 rebuilt LS9\/LSA engine combinations using the listed 3.622-inch crank stroke and 6.125-inch rods. Confirm the exact engine, sleeves, finished bore, cylinder heads and supercharged compression target; the different crown volumes are separate build choices.\u003c\/p\u003e\n\u003cp\u003eThe gudgeon-pin diameter for this group is 0.927 inch. Rod small-end diameter, rod length and pin retention must match the selected kit. The standard and H13 options are priced as complete eight-piston kits.\u003c\/p\u003e\n\u003cp\u003eHave your engine builder check piston-to-bore clearance, ring gaps, deck height, piston-to-valve clearance and rotating-assembly balance before assembly. Nominal compression ratios are selection guides, not a substitute for measuring the chamber, gasket and deck volumes.\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;\"\u003eNominal ratio\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;\"\u003eRing thickness\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;\"\u003e11588-R1-8\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-11.00 CC\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e9.50:1\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eG9272500185\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;\"\u003e1.20 MM x 1.20 MM x 3.00 MM\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e015104-32\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;\"\u003e11589-R1-8\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-11.00 CC\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e9.50:1\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eG9272500185\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;\"\u003e1.20 MM x 1.20 MM x 3.00 MM\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e015104-32\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;\"\u003e11577-R2-8\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e4.080 IN\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e-2.00 CC\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e10.50:1\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eG9272500185\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e09454080\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e1.20 MM x 1.20 MM x 3.00 MM\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e015104-32\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;\"\u003e11578-R2-8\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e4.080 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;\"\u003e9.50:1\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eG9272500185\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e09454080\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e1.20 MM x 1.20 MM x 3.00 MM\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e015104-32\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;\"\u003e11588-R1-8-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-11.00 CC\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e9.50:1\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eH9272500225\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;\"\u003e1.20 MM x 1.20 MM x 3.00 MM\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e015104-32\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;\"\u003e11589-R1-8-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-11.00 CC\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e9.50:1\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eH9272500225\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;\"\u003e1.20 MM x 1.20 MM x 3.00 MM\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e015104-32\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;\"\u003e11577-R2-8-H\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e4.080 IN\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e-2.00 CC\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e10.50:1\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eH9272500225\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e09454080\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e1.20 MM x 1.20 MM x 3.00 MM\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e015104-32\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;\"\u003e11578-R2-8-H\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e4.080 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;\"\u003e9.50:1\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eH9272500225\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e09454080\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e1.20 MM x 1.20 MM x 3.00 MM\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e015104-32\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\u003eBoost \u0026amp; Tune can help coordinate the piston, rod and crank dimensions with your planned naturally aspirated or boosted LS build. Contact BBT with your engine code, measured bore, cylinder heads and target use before ordering if the combination is not already specified.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/bt-fit-engine-ls9\"\u003eLS9 engine parts\u003c\/a\u003e | \u003ca href=\"\/collections\/bt-fit-engine-lsa\"\u003eLSA 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 \/ -11.00 cc \/ 9.50:1 nominal \/ Standard G-series","offer_id":67607064051779,"sku":"11588-R1-8","price":2460.0,"currency_code":"AUD","in_stock":true},{"title":"4.070 in \/ -11.00 cc \/ 9.50:1 nominal \/ Standard G-series","offer_id":67607064084547,"sku":"11589-R1-8","price":2460.0,"currency_code":"AUD","in_stock":true},{"title":"4.080 in \/ -2.00 cc \/ 10.50:1 nominal \/ Standard G-series","offer_id":67607064117315,"sku":"11577-R2-8","price":2460.0,"currency_code":"AUD","in_stock":true},{"title":"4.080 in \/ -12.00 cc \/ 9.50:1 nominal \/ Standard G-series","offer_id":67607064150083,"sku":"11578-R2-8","price":2460.0,"currency_code":"AUD","in_stock":true},{"title":"4.065 in \/ -11.00 cc \/ 9.50:1 nominal \/ H13 upgrade","offer_id":67607064182851,"sku":"11588-R1-8-H","price":2653.0,"currency_code":"AUD","in_stock":true},{"title":"4.070 in \/ -11.00 cc \/ 9.50:1 nominal \/ H13 upgrade","offer_id":67607064215619,"sku":"11589-R1-8-H","price":2653.0,"currency_code":"AUD","in_stock":true},{"title":"4.080 in \/ -2.00 cc \/ 10.50:1 nominal \/ H13 upgrade","offer_id":67607064248387,"sku":"11577-R2-8-H","price":2653.0,"currency_code":"AUD","in_stock":true},{"title":"4.080 in \/ -12.00 cc \/ 9.50:1 nominal \/ H13 upgrade","offer_id":67607064281155,"sku":"11578-R2-8-H","price":2653.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/F26084_9004.jpg?v=1791010501","url":"https:\/\/builtbyboostandtune.com.au\/products\/diamond-special-order-gm-ls9-lsa-3-622-stroke-6-125-rod-1-304-ch","provider":"BUILT BY BOOST AND TUNE","version":"1.0","type":"link"}