106-5549 883-1200 conversion piston kit. +.010"

This S&S forged piston kit is designed for 883cc to 1200cc Sportster conversions that require a +.010 overbore. Fitting 1986 to 2022 XL883 and 1986 to 1987 XL1100 models, these pistons allow you to increase displacement to 1200cc while using your stock 883 cylinder heads. The design yields a 9.5:1 compression ratio, providing a significant boost in power without the need for expensive headwork or case boring. Note that while earlier cylinders can be bored to fit, 2004 and later XL883 models require the purchase of 1200cc cylinders. This kit is sold as a set and includes forged pistons, wrist pins, clips, and rings. It is the perfect choice for a Sportster rider looking for a reliable, high-performance top-end refresh.