Speed Pro Hypereutectic Piston 4.040" Bore 5/64 x 5/64 x 3/16" Ring Grooves Minus 5.0 cc - Coated Skirt 40044 C button: Press C to

C button: Press C to initiate breathing mode

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

Polished Stainless Shifter Boot Ring

Need to run a turbocharged

Speed Pro Hypereutectic Piston 4.040" Bore 5/64 x 5/64 x 3/16" Ring Grooves Minus 5.0 cc - Coated Skirt 40044 C button: Press C toChevrolet 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