Complete your all-LSX roatating assembly wtih GM Performance Parts' new LSX forged aluminum pistons. They're lightweight and tough, enabling higher reves and dependable performance, even with high-boost and nitrous-assisted applications. They're made of 4032 forged aluminum and available in 4.065" and 4.185" bores. Additional details include:
LSX454 Piston, 4.185" bore
Note: Not compatible with production-style LS connecting rods. Must be used only with new LSX connecting rod with 0.866" wrist pin bores.