WISECO 4 1/8" BIG BORE KITS FOR TWIN CAM

4 1/8" Big Bore piston kit

These Wiseco Big Bore kits are developed for Twin Cam (1450CC). The 4 1/8" bore kits will give you a 107CI displacement (1752CC) and must be used with 4 1/8" bore cylinders that must be ordered separately. The 4 1/8" Big Bore kits give a 10.5:1 compression ratio when used with stock cylinder heads, providing maximum torque and throttle response. Kits contain a pair of Wiseco forged pistons, a Hastings ring set, chrome wrist pins and circlips.