19166958 - LSX454, 4.185" Bore Piston

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:

• Flat-top or dished designs with valve relef cut-outs
• High-tech skirt coating
• Forced pin oiling
• Pistons come with wrist pins and rings

LSX454 Piston, 4.185" bore

• Forged dished piston with valve reliefs
• Must be used with LSX connecting rods only
• Lightweight, includes rings and wrist pins
• 4.185" bore, .866" wrist pin size
• 1.2mm compression ring lands and a 2.0mm oil control ring land

Note: Not compatible with production-style LS connecting rods. Must be used only with new LSX connecting rod with 0.866" wrist pin bores.