Speed Pro Hypereutectic Piston - 4.030 in Bore - 5/64 x 5/64 x 3/16 in Ring Grooves - Minus 5.00 cc - Coated Skirt - Small Block Chevy - Set of 8 H631CP30 R07C15W50 Adjustable Throttle Stop

Adjustable Throttle Stop

riding deep into the trails for a weekend of fun

210 in Stroke

TIG-welded 2-inch DOM steel tubing and laser cut plates

Turbo Action is a Transmission shop specializing in GM turbo Transmissions

Speed Pro Hypereutectic Piston - 4.030 in Bore - 5/64 x 5/64 x 3/16 in Ring Grooves - Minus 5.00 cc - Coated Skirt - Small Block Chevy - Set of 8 H631CP30 R07C15W50 Adjustable Throttle StopChevrolet 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