Flat Top Pistons

Diamond LS 4.125 Bore 4.000 Stroke -3.84cc Flat Top Piston Kit 11585-R1-8 Diamond Comp Series Pistons  Features: 3D milling on piston crowns for ready to install finish Valve pockets designed to work with most aftermarket cylinder heads Offset pins...

JE Pistons LS 4.125 Bore 4.000 Stroke -5.0cc Flat Top Piston Set 311985 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...

JE Pistons LS7 4.125 Bore 4.000 Stroke -2cc Flat Top Piston Set 311905 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...

Wiseco Gen V LT1 4.125 Bore 4.000 Stroke -6.9cc Flat Top Piston Kit K0448X6 Features: ArmorGlide Skirt Coating Designed for use with stock rod .180” wall pins & wire locks Anti-detonation & pressure seal grooves 2618 High Strength Alloy...

JE Pistons SRP Pro LS 4.125 Bore 4.000 Stroke -20.0cc Flat Top Piston Kit 383047 Leading the way in affordable piston technology is Sportsman Racing Products (SRP) Pistons. When SRP Pistons joined the JE Piston family, new pistons were developed that...

JE Pistons SRP Pro LS 4.125 Bore 4.000 Stroke -5cc Flat Top Piston Kit 383051 Leading the way in affordable piston technology is Sportsman Racing Products (SRP) Pistons. When SRP Pistons joined the JE Piston family, new pistons were developed that added...

Manley Platinum Series LS 4.125 Bore 4.000 Stroke -5cc Flat Top Piston Kit 592300C-8 LS-1/LS-2/LS-6, LS-3/LS-7, LSX, Dart LS Next Features: 2618 high strength material lightweight design Offset wrist pin design Machined for reluctor wheel clearance...

JE Pistons Ultra Series LS 4.125 Bore 4.000 Stroke -5cc Flat Top Piston Set 361719 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,...

Diamond LS2K 4.125 Bore 4.000 Stroke -4.8cc Flat Top Piston Kit 21531-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 4.125 Bore 4.000 Stroke -3cc Flat Top Piston Kit 21518-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 4.125 Bore 4.000 Stroke -8cc Flat Top Piston Kit K395X125 Wiseco Professional Series LSX Piston Kit. Features: ArmorGlide Skirt Coating Pin Upgrade Recommended if over 700HP (Pin P/N S718) .150” wall pin & Spirolox Anti-detonation...

CP Bullet LS7 4.125 Bore 4.000 Stroke -4.6cc Flat Top Pistons & Rings Kit CP-Carrillo Bullet pistons are designed specifically to fit all LS7 12° heads. Pistons are proudly made in the USA from 2618 forgings and are suitable for nitrous...