Manley Subaru EJ257 100mm +.50mm Bore 8.5:1 -17cc Dish Platinum Series Piston Set with Rings

Manley forged alloy pistons are made from 2618 high strength material featuring a lightweight design that includes a tool steel pin - integral to the piston design, pressure balance groove, round wire locks, complete ring set, and moly coated skirts. Manley's platinum Series pistons are designed to provide a compression ratio of 8:5:1.The Subaru EJ25 piston set is available in:Standard Bore 99.5mmOversize Bore 99.55mmOversize Bore 99.75mmOversize Bore 100mm