LS1 PowerPak F/T Piston Set 3.898 Bore - 930217698

Piston and Ring - PowerPak - Forged - Flat Top - 3.898 in Bore - 1.340 in Compression Height - 1.0 x 1.0 x 2.0 mm Ring Groove - Minus 4.00 cc - GM LS-Series - Kit