Wiseco AC/HON B 4v DOME +8.25 STRUT 8425XX Piston Shelf Stock Kit

Wiseco Sport Compact Series pistons are designed to optimize squish or quench during the compression combustion cycle, resulting in resistance to detonation and pre-ignition. They feature precision machined ring grooves with proper orifice/accumulator volume, complex piston skirt profiles that reduce power-robbing friction, and piston crown shapes designed to promote maximum intake charge efficiency through scavenging mixture "cross flow" during intake and exhaust valve overlap. This leads to longer engine life and increased horsepower potential. The piston set includes pistons, rings, and pins.