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Lightweight design: CP-Carrillo pistons are designed to be lightweight for improved acceleration and reduced stress on the engine
and race motors requiring superior head gasket sealing and durability
This kit features a Complete Set Of Kibblewhite Precision's LEGENDARY Hi-Temp Red Viton Valve Stem Seals
Absolutely—all parts are new in original packaging with a 1-Year Warranty*
Don't settle for less—get the ultimate rebuild kit and hit the trail or track with confidence
YZ250 YZ 250 72mm Big Bore Cylinder Head Cometic MLS Gasket Kit 1999-2025 BPRATV BPRATV Lightweight design: CP-Carrillo pistons areComplete YZ250 big bore head kit with Cometic MLS gasket set for improved combustion efficiency and power gains 1999 2025. BPRATV Yamaha YZ250 72mm Big Bore Cylinder Head & Cometic Top End Kit 1999 2025 Product Description Upgrade your engine performance with the BPRATV Yamaha YZ250 72mm Big Bore Cylinder Head Kit paired with a premium Cometic Top End Gasket Kit. Designed specifically for big bore applications, this high performance cylinder head