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The included cylinder head gasket is a premium Multi-Layer Steel (MLS) gasket for excellent sealing and durability
Transform your YFZ450R's power and efficiency with our comprehensive engine rebuild kit
including a 68mm big bore cylinder and machined head
- This kit includes 2 sets of all the temperature-resistant O-Rings required for the head and domes of your Pro Design
Upgrade your ride today and experience the power and performance of a true champion
Best YFZ450 98mm +3 Big Bore Kit YFZ 450 Carb 478 cc Cylinder Top Upper Assembly RZR Pro R The included cylinder head gasketFITS '03 09 '12 13 YAMAHA YFZ450 CARB MODELS ONLY BPRATV 98mm big bore nikasil cylinder (1year warranty)* Wiseco, CP, JE, or Wossner forged big bore piston kit* Nitrite coated piston rings Chrome wristpin Circlips Top end gasket kit Cometic big bore MLS head gasket Timing chain Maxlock TITANIUM head stud kit LIFETIME WARRANTY*! Piston uses pump or race gas No mods required 1 year warranty* We are an authorized distributor BPRATV The Best Parts. The