Speed Pro Hypereutectic Piston 4.280" Bore 5/64 x 5/64 x 3/16" Ring Grooves Plus 10.5 cc - Coated Skirt R100033XL GMC: Envoy XL 03 -

GMC: Envoy XL 03 - 06 5

The MWA muffler is 100% Made in the USA and is constructed of high quality Stainless Steel to outlast the competition

Chevrolet: Corvette 69 - 74 5

This TPS is a Ford TPS with a GM 3 pin flat weatherpack connection

Speed Pro Hypereutectic Piston 4.280" Bore 5/64 x 5/64 x 3/16" Ring Grooves Plus 10.5 cc - Coated Skirt R100033XL GMC: Envoy XL 03 -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 technologies,