Speed Pro Hypereutectic Piston 4.390" Bore 5/64 x 5/64 x 3/16" Ring Grooves Minus 4.2 cc - Coated Skirt Oiling Systems Bypass Valve Jet Can

Bypass Valve Jet Can

The Auto Gage line of instruments provide the best bang for the buck performance in the industry

which resists corrosion and doesn't flake off like powder coat when hit by road debris

1983-1984 Pontiac ParisienneFits all GM TH350 and TH250 automatic transmissions

Square Bore In-Line to Square Bore Sideways

Speed Pro Hypereutectic Piston 4.390" Bore 5/64 x 5/64 x 3/16" Ring Grooves Minus 4.2 cc - Coated Skirt Oiling Systems Bypass Valve Jet CanFord 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