Wiseco SBC LS1 Vortec 5.3L FT -2.2cc 10.25:1 Piston Shelf Stock Kit

This is a set of 8 Wiseco K474M96 forged flat-top pistons designed for GM LS 5.3L / 327ci engines, specifically compatible with LS1, LS2, and LS6 valve pockets. They are engineered for naturally aspirated or nitrous applications and require a 3.622-inch crankshaft stroke and 6.125-inch connecting rods. With a 3.780-inch bore and -2.2cc dome volume, they achieve a 9.6:1 compression ratio with 66cc cylinder heads or 9.1:1 with 70cc heads. Features include ArmorGlide Skirt coating, .150" wall pins with Spirolox, and anti-detonation and pressure seal grooves. Piston rings (1/16", 1/16", 3.0mm) and wrist pins (0.927 inches) are sold separately.