WK1759 88" to 107" Twin Cam ''Sleeper'' piston kit. STD

The Wiseco Sleeper piston kit is engineered for riders who want to push their 1999 to 2006 88-inch Twin Cam engines to a massive 107-inch displacement. This big bore conversion kit uses a 4-1/8 inch bore while working perfectly with the stock 4-inch stroke flywheels. The forged domed pistons provide a stout 10.5:1 compression ratio for serious torque and horsepower gains. Because of the significant increase in size, this kit requires the use of 4-1/8 inch big bore cylinders and professional case boring for proper fitment. The kit includes the forged pistons, Hastings rings, wrist pins, and circlips. Please be aware that gaskets are not included and must be purchased separately, and oversize options are not available for this specific sleeper setup.