Piston and Ring - PowerPak - Flat Top - Forged - 4.040 in Bore - 1.0 x 1.0 x 2.0 mm Ring Grooves - Minus 4.10 cc - Small Block Chevy - Kit

Piston and Ring - PowerPak - Forged - 4.030 in Bore - 1.0 x 1.0 x 2.0 mm Ring Groove - Minus 5.00 cc - Small Block Chevy - Kit

Piston and Ring - PowerPak - Forged - 4.030 in Bore - 1.0 x 1.0 x 2.0 mm Ring Groove - Minus 5.00 cc - Small Block Chevy - Kit

Piston and Ring - PowerPak - Forged - 4.030 in Bore - 1.0 x 1.0 x 2.0 mm Ring Groove - Minus 5.00 cc - Small Block Chevy - Kit

Piston and Ring - PowerPak - Forged - 4.030 in Bore - 1.0 x 1.0 x 2.0 mm Ring Groove - Minus 5.00 cc - Small Block Chevy - Kit

Piston and Ring - PowerPak - Flat Top - Forged - 4.030 in Bore - 1.0 x 1.0 x 2.0 mm Ring Grooves - Minus 4.10 cc - Small Block Chevy - Kit