Speed Pro Hypereutectic Piston 4.390" Bore 5/64 x 5/64 x 3/16" Ring Grooves Minus 4.2 cc - Coated Skirt OFF-SPLITTER Peterson Fluid System products have

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Speed Pro Hypereutectic Piston 4.390" Bore 5/64 x 5/64 x 3/16" Ring Grooves Minus 4.2 cc - Coated Skirt OFF-SPLITTER Peterson Fluid System products haveFord 429, 460 Sophisticated "barrel" profiles help optimize oil wedge between skirt and wall. Piston skirts protected by next gen DUROSHIELD coating. TAC ring groove geometry Weight matched to + 2 grams. Machined valve reliefs and circlip grooves; LR 63 lock rings for floated applicationsFrom pistons to engine bearing components, Speed Pro offers an array of performance engine parts. You can rely on Speed Pro for industry leading performance engine