Flat Top Pistons

JE Pistons LS 4.185 Bore 4.000 Stroke -5.0cc Flat Top Piston Set 311989 JE Pistons asymmetrical FSR (Forged Side Relief) piston line incorporates modern forging design with a larger skirt on the major thrust side and smaller, friction-reducing skirt on...

Diamond LS2K 4.185 Bore 4.000 Stroke -4.8cc Flat Top Piston Kit 21532-RS-8 Features: 3D milling on piston crowns for ready to install finish Inboard forging design with fully machined under crown for maximum strength Valve pockets designed to work with...

Diamond LS2K LS 4.185 Bore 4.000 Stroke -3cc Flat Top Piston Kit 21519-RS-8 Features: 3D milling on piston crowns for ready to install finish Inboard forging design with fully machined under crown for maximum strength Valve pockets designed to work with...

Wiseco LS 4.185 Bore 4.000 Stroke -8cc Flat Top Piston Kit K395X185 Wiseco Professional Series LSX Piston Kit. Features: ArmorGlide Skirt Coating Pin Upgrade Recommened if over 700HP (Pin P/N S718) .150” wall pin & Spirolox Anti-detonation...