92-1930 Evo 3-5/8 big bore piston set (OEM heads). Std.

This S&S piston set is designed for 1984 to 1999 Evolution Big Twin engines being built into 96-inch strokers. These standard-sized forged pistons are intended for use with 3-5/8 inch big bore cylinders that have a 5.565-inch length and a 4-5/8 inch stroke flywheel. This combination is compatible with stock cylinder heads and a stock-length manifold, resulting in a compression ratio of approximately 10.1:1. Sold as a set, the kit comes complete with forged pistons, wrist pins, clips, and high-quality rings. This is a proven setup for riders looking for a significant increase in displacement and torque while maintaining the classic Evo architecture. Proper break-in procedures are essential to ensure the longevity of these high-performance components.