KB924C020 Performance, piston set +.020

This KB Performance forged piston set is specifically tailored for 1986 to 2022 Sportster XL883 models undergoing a 1200cc conversion with a +.020 inch oversize bore. These pistons achieve a 10.1:1 compression ratio when used with unmodified 883 heads. Forged from 4032 high-silicon alloy, they provide the durability needed for high-performance applications while offering excellent resistance to cracking. The kit is sold as a set and includes all necessary rings, wrist pins, and retaining clips. Note that for 2004 and later XL models, 1200cc cylinders must be utilized because the stock 883 liners are too thin for this bore size. Because these pistons utilize offset pins, it is essential to follow the provided instructions for correct orientation to maintain proper engine geometry and smooth operation.