JE Pistons Ultra Series GM Gen III/IV LS 4.005in Bore/3.622in Stroke Set of 8 Pistons

JE Pistons Ultra Series pistons combine all of the best, most desirable piston features, such as thermal barrier crown coating, lateral gas ports, thick-wall wrist pins, and a revolutionary new forging technology for the ultimate in strength. They are ready for massive power and boost right out of the box!