Speed Pro Hypereutectic Piston 4.040" Bore 5/64 x 5/64 x 3/16" Ring Grooves Minus 5.0 cc - Coated Skirt 40044 Gauge kit includes custom tuned

Gauge kit includes custom tuned

Heat-Treated Collars

3-3/8 in / 2-1/16 in Diameter

C button: Press C to initiate breathing mode

Polished Stainless Shifter Boot Ring

Speed Pro Hypereutectic Piston 4.040" Bore 5/64 x 5/64 x 3/16" Ring Grooves Minus 5.0 cc - Coated Skirt 40044 Gauge kit includes custom tunedChevrolet Small Block 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