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 21300MR-O Chrysler: 300 66 - 67

Chrysler: 300 66 - 67 7

using #6 wire

Application specific (Non universal)Vehicle Applications: 2015-2018 Ford F150 (All Cabs) Short Bed) -3" to +1"Vehicle Applications: 2015-2018 Ford F150 (All Cabs) Short Bed) -3" to +1"

1956-1960 Ford Sunliner

Mustang 87-93 Fox

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 21300MR-O Chrysler: 300 66 - 67Chevrolet 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