{"product_id":"03-04-05-yz450f-450f-big-bore-480cc-3-cylinder-98mm-piston-top-end-rebuild-kit","title":"03 04 05 YZ450F 450F Big Bore 480cc +3 Cylinder 98mm Piston Top End Rebuild Kit","description":"\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 1px; color: transparent;\"\u003e20001, 4785M09500, C3066, 71014-5, 5TA-11311-12-00, CR8EIX, 5TA-11311-00-00, 5TG-11633-10-00, 5TG-11603-00-00, 99999-03528-00, 99009-20500-00, 5TA-11181-00-00, 5TA-11351-00-00, 4FM-12213-00-00, 5TA-11311-01-00, 5TA-11311-02-00, 5TA-11311-10-00, 5TA-11311-11-00, 5TG-11631-00-00, 5TG-11633-00-00, 3KS-12213-00-00, 4BE-12213-00-00\u003c\/span\u003e\u003c\/p\u003e\u003cp data-start=\"0\" data-end=\"130\" class=\"\" style=\"text-align: center;\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cstrong\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"font-size: 16px;\"\u003e⚡ 03–05 YZ450F \/ 03–06 WR450F 480 cc Big-Bore Top-End Rebuild Kit – 98 mm Nikasil Cylinder + Forged Piston + Cometic Gaskets ⚡\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e \u003ch3 data-start=\"137\" data-end=\"166\" class=\"\" style=\"text-align: center;\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"color: rgb(56, 118, 29);\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"font-size: 16px;\"\u003e🛠️ Product Description\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h3\u003e \u003cp data-start=\"167\" data-end=\"702\" class=\"\" style=\"text-align: center;\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"font-size: 16px;\"\u003eUnlock serious, reliable horsepower with this all-in-one 480 cc big-bore top-end rebuild package. The BPRATV 98 mm Nikasil-plated cylinder drops straight into your YZ450F or WR450F with \u003cstrong data-start=\"353\" data-end=\"378\"\u003eno machining required\u003c\/strong\u003e — just bolt on and ride! Paired with a CP-Carrillo or JE forged piston*, plus a complete Cometic MLS gasket set, heavy-duty cam chain, and titanium head stud kit, this combo adds arm-wrenching torque while staying bullet-proof dependable on the track or trail.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e \u003ch3 data-start=\"709\" data-end=\"729\" class=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"font-size: 16px;\"\u003e✅ Key Features\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h3\u003e \u003cul data-start=\"731\" data-end=\"1317\"\u003e \u003cli data-start=\"731\" data-end=\"834\" class=\"\"\u003e \u003cp data-start=\"733\" data-end=\"834\" class=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cstrong data-start=\"733\" data-end=\"766\"\u003eBPRATV 98 mm Nikasil Cylinder\u003c\/strong\u003e – precision-plated for top-tier wear resistance (1-year warranty)\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"835\" data-end=\"944\" class=\"\"\u003e \u003cp data-start=\"837\" data-end=\"944\" class=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cstrong data-start=\"837\" data-end=\"880\"\u003eCP-Carrillo \/ JE \/ Wiseco Forged Piston\u003c\/strong\u003e – includes rings, wrist-pin \u0026amp; clips for race-grade durability\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"945\" data-end=\"1042\" class=\"\"\u003e \u003cp data-start=\"947\" data-end=\"1042\" class=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cstrong data-start=\"947\" data-end=\"986\"\u003eCometic Complete Top-End Gasket Kit\u003c\/strong\u003e – MLS head gasket engineered for big-bore compression\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"1043\" data-end=\"1129\" class=\"\"\u003e \u003cp data-start=\"1045\" data-end=\"1129\" class=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cstrong data-start=\"1045\" data-end=\"1082\"\u003eBPRATV Talon Heavy-Duty Cam Chain\u003c\/strong\u003e – thicker side plates handle high-rev stress\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"1130\" data-end=\"1229\" class=\"\"\u003e \u003cp data-start=\"1132\" data-end=\"1229\" class=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cstrong data-start=\"1132\" data-end=\"1165\"\u003eBPRATV Titanium Head Stud Kit\u003c\/strong\u003e – lightweight, stretch-resistant studs hold torque under heat\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"1230\" data-end=\"1317\" class=\"\"\u003e \u003cp data-start=\"1232\" data-end=\"1317\" class=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cstrong data-start=\"1232\" data-end=\"1257\"\u003eEverything in the Box\u003c\/strong\u003e – arrives brand-new in original packaging, ready to install\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv class=\"_tableContainer_16hzy_1\"\u003e\u003cdiv tabindex=\"-1\" class=\"_tableWrapper_16hzy_14 group flex w-fit flex-col-reverse\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"font-size: 16px;\"\u003e \u003cdiv style=\"display: flex; justify-content: center; margin: 20px 0;\"\u003e \u003ctable border=\"1\" cellpadding=\"10\" cellspacing=\"0\" style=\"border-collapse: collapse; text-align: left; font-family: Arial, sans-serif;\"\u003e \u003cthead\u003e \u003ctr style=\"background-color: #f2f2f2;\"\u003e \u003cth\u003eAdvantage\u003c\/th\u003e \u003cth\u003eWhat It Means for You\u003c\/th\u003e \u003c\/tr\u003e \u003c\/thead\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003e+3 mm \/ 480 cc Displacement\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eMassive torque jump \u0026amp; quicker pull out of corners\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eNikasil vs. cast-iron sleeve\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eCooler running, longer cylinder life\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eForged, not cast piston\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eSurvives high RPM abuse without skirt collapse\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eMLS head gasket\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eSecure seal under elevated combustion pressures\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eOne-year warranty\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eConfidence that your investment is protected\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e\n\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\u003c\/div\u003e \u003cp data-start=\"1841\" data-end=\"1957\" class=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cstrong data-start=\"1841\" data-end=\"1865\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"font-size: 16px;\"\u003e❓ FAQs\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp data-start=\"1841\" data-end=\"1957\" class=\"\" style=\"margin-left: 20px;\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cstrong data-start=\"1841\" data-end=\"1865\"\u003eWill it fit my bike?\u003c\/strong\u003e\u003cbr data-start=\"1865\" data-end=\"1868\"\u003e Yes! Direct fit for \u003cstrong data-start=\"1888\" data-end=\"1910\"\u003eYZ450F (2003-2005)\u003c\/strong\u003e \u0026amp; \u003cstrong data-start=\"1913\" data-end=\"1935\"\u003eWR450F (2003-2006)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cp data-start=\"1959\" data-end=\"2099\" class=\"\" style=\"margin-left: 20px;\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cstrong data-start=\"1959\" data-end=\"2004\"\u003eDo I need special jetting or ECU changes?\u003c\/strong\u003e\u003cbr data-start=\"2004\" data-end=\"2007\"\u003e A richer fuel setting is recommended to maximize the extra displacement and keep temps down.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cp data-start=\"2101\" data-end=\"2221\" class=\"\" style=\"margin-left: 20px;\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cstrong data-start=\"2101\" data-end=\"2126\"\u003ePump gas or race gas?\u003c\/strong\u003e\u003cbr data-start=\"2126\" data-end=\"2129\"\u003e The kit’s piston works great on high-octane pump gas; race fuel unlocks full potential.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cp data-start=\"2223\" data-end=\"2407\" class=\"\" style=\"margin-left: 20px;\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cstrong data-start=\"2223\" data-end=\"2253\"\u003eCan I install this myself?\u003c\/strong\u003e\u003cbr data-start=\"2253\" data-end=\"2256\"\u003e If you’re comfortable with top-end service and have a torque wrench, you’re set. Otherwise, any experienced engine builder can handle the swap quickly.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cp data-start=\"2409\" data-end=\"2534\" class=\"\" style=\"margin-left: 20px;\"\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cspan style=\"\"\u003e\u003cstrong data-start=\"2409\" data-end=\"2442\"\u003eDoes it include instructions?\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003eA detailed component checklist is provided; follow your factory service manual for specs.\u003c\/span\u003e\u003c\/p\u003e\u003cdiv align=\"center\"\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(0, 0, 255);\"\u003eBPRATV - The Best Parts. The Best Performance. The Best Price.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e \u003cdiv align=\"center\"\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(0, 0, 255);\"\u003eBRAPPPPPPPPPP!\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\u003cdiv align=\"center\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"BPRATV","offers":[{"title":"Default Title","offer_id":44723081216197,"sku":"255573587368\/21001\/M1051\/247942\/*118\/2HHD\/C3068","price":545.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/1083\/3861\/files\/yamaha-yz450f-06-09-98mm-big-bore-cp-piston-cylinder-cometic-top-end-rebuild-kit.jpg?v=1747269460","url":"https:\/\/bpratv.com\/products\/03-04-05-yz450f-450f-big-bore-480cc-3-cylinder-98mm-piston-top-end-rebuild-kit","provider":"BPRATV","version":"1.0","type":"link"}