The pistons, rings, valve and pin clips in this kit are designed to work together as a system. These are NOT compatible with OEM components and should ONLY be used with components in the kit.
Give your bike a performance boost
Includes all necessary parts for a complete top end service/rebuild: pistons, piston rings, piston pins, gaskets, valves and valve springs
Pistons fully machined from 2618 aluminum alloy with a performance skirt coating
Black Diamond or White Diamond engine valves (depending on application)
Lightweight racing valve springs kit with titanium valve spring retainers, dual springs and H.T. steel base washers (springs are suitable for use with high-performance cams)
All necessary gaskets, seals and O-rings included
Sold as a complete kit
Made in the USA
Product Note:
Specification
Details
Bore
Varies (make selection above)
Country of Origin
USA
Material
Varies (make selection above)
Valve Lift
Varies (make selection above)
Valve Type
Varies (make selection above)
Vehicle Fitment
Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.
Got the kit and installed. Instructions were explanatory. Bike rips now. Thank you
Great Kit don't forget valve keepers!
By Vladimir T. on
Verified Purchaser
Bought my CRF450R new in 07' she was a ripper for many years but when she started getting hard to start I started looking into top-end kits... Well she is a fresh ripper, be careful not to loop it! Was such a slow fade I couldn't tell I was down on power with the fresh top end I've got all the power! Only thing I can say is that it is a bummer that this kit does not come with valve keepers. Overall great quality went together well and the bike rips, my local shop quoted me $1200 I got it done over a weekend and saved $800. Great Kit!
Great winter time project, rebuild crf450r!
By David S. on
Verified Purchaser
Great value for great price! Best top end kit i have purchased, performance is like brand new!
Great product!
By Steven K. on
Verified Purchaser
Kit included all top end parts, and the bike is running great. Would definitely recommend.
Kibblewhite Top End Kit
By michael d. on
Verified Purchaser
Nice kit
Great parts.
By Anna M. on
Verified Purchaser
Great parts. Quality.
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Verified Purchaser
