LS7 PowerPak F/T Piston Set 4.125 Bore - 930221625 - Mahle Motorsport

Piston and Ring - PowerPak F/T - Forged - Flat Top - 4.125 in Bore - 1.105 in Compression Height - 1.0 x 1.0 x 2.0 mm Ring Grooves - Minus 2.50 cc - GM LS-Series - Kit