Load image into Gallery viewer, 1-2820-4040-6.0 - LS2 -6.2 - LS3 -  L98 - LQ9 - LS7 - LSA - LSX-Chevy LS FX1 Series -3cc Flat Top  LS1,LS2,LS3 and LS7-Forged-Piston-Set- 4.04 inch bore
Load image into Gallery viewer, 1-2820-4040-6.0 - LS2 -6.2 - LS3 -  L98 - LQ9 - LS7 - LSA - LSX-Chevy LS FX1 Series -3cc Flat Top  LS1,LS2,LS3 and LS7-Forged-Piston-Set- 4.04 inch bore
Load image into Gallery viewer, 1-2820-4040-6.0 - LS2 -6.2 - LS3 -  L98 - LQ9 - LS7 - LSA - LSX-Chevy LS FX1 Series -3cc Flat Top  LS1,LS2,LS3 and LS7-Forged-Piston-Set- 4.04 inch bore
Load image into Gallery viewer, 1-2820-4040-6.0 - LS2 -6.2 - LS3 -  L98 - LQ9 - LS7 - LSA - LSX-Chevy LS FX1 Series -3cc Flat Top  LS1,LS2,LS3 and LS7-Forged-Piston-Set- 4.04 inch bore

SKU: 1-2820-4040

1-2820-4040-6.0 - LS2 -6.2 - LS3 - L98 - LQ9 - LS7 - LSA - LSX-Chevy LS FX1 Series -3cc Flat Top LS1,LS2,LS3 and LS7-Forged-Piston-Set- 4.04 inch bore

Regular price $669.95
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Made in the USA

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This is a pre order item. We will ship it when it comes in stock.

371 Chevy LS FX Comp Height: 1.305-3cc Flat Top PIN: 0.927 Ring Groove: 1.2/1.2/3MM Stroke: 3.622 ROD: 6.125 Full-Floating or Press Fit 64cc-1.71, 66cc-1.69, 72cc-1.63 4032 Alloy


Engine Brand: Chevy

Engine Family: Chevy LS

Engine Size: 6.0 - LS2 -6.2 - LS3 - L98 - LQ9 - LS7 - LSA - LSX

With/Without Rings: Without Rings

Cylinder Bore Size: 4.040 in , 102.535 mm

Ring Width: 1.2/1.2/3MM

Compression Height: 1.305"

Pin Diameter: 0.927"

Connecting Rod Length: 6.125"

Crankshaft Stroke: 3.622"

Piston Series: 1 - FX 4032 Alloy

Alloy: 4032 Alloy

Cylinder Head: LS1,LS2,LS3 and LS7

TDC Assembly Height: 9.241"

Piston Top Aprox. Comp. Ratio:

-3cc Flat Top LS1,LS2,LS3 and LS7
ChamberComp Ratio
641.71 to 1
661.69 to 1
721.63 to 1

Download Piston Instructions

Piston Specs

Engine Brand: Chevy

Engine Family: Chevy LS

Engine Size: 6.0 - LS2 -6.2 - LS3 - L98 - LQ9 - LS7 - LSA - LSX

With/Without Rings: Without Rings

Cylinder Bore Size: 4.040 in , 102.535 mm

Ring Width: 1.2/1.2/3MM

Compression Height: 1.305"

Pin Diameter: 0.927"

Connecting Rod Length: 6.125"

Crankshaft Stroke: 3.622"

Piston Series: 1 - FX 4032 Alloy

Alloy: 4032 Alloy

Cylinder Head: LS1,LS2,LS3 and LS7

TDC Assembly Height: 9.241"

Piston Top Aprox. Comp. Ratio:

-3cc Flat Top LS1,LS2,LS3 and LS7
ChamberComp Ratio
641.71 to 1
661.69 to 1
721.63 to 1

Download Piston Instructions

Engine Power TV

The DSS FX, X-Groove Feature