LS1 PowerPak F/T Piston Set 4.000 Bore - 930227700 - Mahle Motorsport

Piston and Ring - PowerPak - Forged - Flat Top - 4.000 in Bore - 1.330 in Compression Height - 1.0 x 1.0 x 2.0 mm Ring Grooves - Minus 5.80 cc - GM LS-Series - Kit