S&S, 3-5/8″ repl. Evo SuperStock piston kit. Std

Replacement recessed dome pistons for 3-5/8″ Big Bore applications. Will fit 84-99 Evolution Big Twin models with S&S SuperStock heads only and 3-5/8″ bore cylinders in combination with 4-1/4″ (5.375″ cylinders, 9.4:1CR), 4-1/2″ (5.500″ cylinders, 9.8:1CR) and 4-5/8″ (5.565″ cylinders, 10.1:1CR) strokes. S&S tolerance recommendations: Close fit .0015″ to .002″. Loose fit: .003″ to .004″. All pistons include wrist pins, wrist pin clips and piston rings. Note: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install & make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines.