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Wiseco (CK140 89.0mm 12.5:1 Compression 440cc Overbore Re-Sleeving Kit
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*Price and Stocks may change without prior notice
*Packaging of actual item may differ from photo shown
- Electrical items MAY be 110 volts.
- 7 Day Return Policy
- All products are genuine and original
About Wiseco
Wiseco big bore kits are perfect for those looking to create the ultimate high performance machine. All-in-one solution saves time and money. Wiseco’s detailed skirt shapes and profiles are very specific to each application. Variable cam programming software developed in house allows Wiseco to produce high-performance shapes unique to only Wiseco. The skirt shape (barrel/cam) is one of the most functional areas on the piston, and provides stability and smooth operation in the cylinder bore. Stability is important for proper ring seal, reduced friction, and quiet operation. Each skirt shape is designed for a specific running clearance, based on coefficient of thermal expansion of the piston alloy. Some forging alloys expand more than casting alloys, but each Wiseco piston is designed with the proper installed clearance to produce the most power, least wear, and best seal at running temperature, for each application. Comparing installed clearances on cast versus forged parts is not indicative of the running clearance at temperature. Wiseco engineers have a strong background in all forms of racing applications, and produce the best shapes and designs in the industry. Fits: Honda XR400 1996-04, TRX400EX 1999-08, TRX400X 2009-12. Kit comes complete with a big bore sleeve, forged piston, and complete top end gasket kit to make your rebuild simple with no case modifications are required.
