{"product_id":"diamond-special-order-bmw-s63b44-4-4l-v8-88-3-mm-stroke-supplied-geometry-rod-1-259-in-ch","title":"Diamond Forged Piston Kit — BMW S63B44 4.4L V8","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;\"\u003eBMW S63B44 4.4L V8 forged piston kit\u003c\/h2\u003e\n\u003cp\u003eBuild your BMW S63B44 4.4L V8 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\u003c\/div\u003e\n\u003ch3\u003ePrecision in the details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2618 forged aluminium construction for a performance engine build.\u003c\/li\u003e\n\u003cli\u003eApplication-specific crown volume and compression height, with exact kit part numbers listed below.\u003c\/li\u003e\n\u003cli\u003eMatched ring set, gudgeon pins and retainers supplied with each complete kit.\u003c\/li\u003e\n\u003cli\u003eSide gas ports, moly-coated skirts and 3D-machined crowns.\u003c\/li\u003e\n\u003cli\u003eIncluded H13 gudgeon pins with 0.225 in wall thickness.\u003c\/li\u003e\n\u003cli\u003e1.0 mm \/ 1.2 mm \/ 2.8 mm ring package 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\u003eThe specified gudgeon pins are included in the kit price. Check the pin part number and dimensions in the kit table when matching connecting rods.\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;\"\u003e1.259 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;\"\u003e88.3 MM\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;\"\u003eFull Round\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003ch3\u003eFitment and engine preparation\u003c\/h3\u003e\n\u003cp\u003eConfirm the exact S63B44 revision and rod specification with BBT before ordering. The supplier does not publish a compression ratio for this kit. Do not assume interchangeability across S63 generations.\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\u003ctr\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e83117-8\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e89 MM\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e-10.3 CC\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eNot published\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eH8662250225C\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e09553504\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003e015113-16\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;text-align:left;border-bottom:1px solid #e5e9ed;\"\u003eConfirm with BBT\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp style=\"font-size:0.9em;\"\u003eUse the option selectors to choose your order. 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-s63\"\u003eBrowse related BMW S63B44 4.4L V8 engine parts\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp style=\"font-size:0.85em;color:#596773;\"\u003ePhotography shows Diamond’s S63 piston series. 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":"89 mm \/ -10.3 cc \/ ratio not published \/ H13 included","offer_id":67606780444739,"sku":"83117-8","price":3495.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/optimized_dia1.png?v=1791015905","url":"https:\/\/builtbyboostandtune.com.au\/products\/diamond-special-order-bmw-s63b44-4-4l-v8-88-3-mm-stroke-supplied-geometry-rod-1-259-in-ch","provider":"BUILT BY BOOST AND TUNE","version":"1.0","type":"link"}