Replacement cylinder for the VERSA Engine, designed to fit the Big Block GX390 head bolt pattern. Available in custom deck heights to suit your stroke, rod length, and piston compression height requirements. Each cylinder is made to order with a sleeve installed, featuring a 3.700″ inside diameter that is not finish bored or honed, allowing it to be machined to your exact specifications. Build details will be confirmed with you after your order is placed.