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 H860CP30 205991 so designing a good fitting

so designing a good fitting

This two chamber design incorporates Flowmaster's patented Delta Flow technology

which features -8 AN inlet and outlet

372 in Bore

1991-1997 Oldsmobile Bravada (Front)Vehicle Applications: 1989-1994 Isuzu Amigo (Front) (Drive: RWD)

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 H860CP30 205991 so designing a good fittingChevrolet 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