Load image into Gallery viewer, 1-2812-3903 4.8 - 5.3 - LS1 - LS6 Chevy LS 1 FX Series +6cc  Dome Top LS1,LS2,LS3 and LS7 Forged Piston Set 3.903 inch bore
Load image into Gallery viewer, 1-2812-3903 4.8 - 5.3 - LS1 - LS6 Chevy LS 1 FX Series +6cc  Dome Top LS1,LS2,LS3 and LS7 Forged Piston Set 3.903 inch bore
Load image into Gallery viewer, 1-2812-3903 4.8 - 5.3 - LS1 - LS6 Chevy LS 1 FX Series +6cc  Dome Top LS1,LS2,LS3 and LS7 Forged Piston Set 3.903 inch bore
Load image into Gallery viewer, 1-2812-3903 4.8 - 5.3 - LS1 - LS6 Chevy LS 1 FX Series +6cc  Dome Top LS1,LS2,LS3 and LS7 Forged Piston Set 3.903 inch bore

SKU: 1-2812-3903

1-2812-3903 4.8 - 5.3 - LS1 - LS6 Chevy LS 1 FX Series +6cc Dome Top LS1,LS2,LS3 and LS7 Forged Piston Set 3.903 inch bore

Regular price $669.95
Sale price $669.95 Regular price
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Ships in 1 - 8 days

Made in the USA

Made in the USA

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

347 Chevy LS, FX 4032 Alloy, Comp Height: 1.33, +6cc Dome Top, PIN: .943, Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.622, ROD: 6.098, , Appox Comp Ratio: 64cc-11.79, 66cc-11.48, 72cc-10.62


Engine Brand: Chevy

Engine Family: Chevy LS

Engine Size: 4.8 - 5.3 - LS1 - LS6

With/Without Rings: Without Rings

Cylinder Bore Size: 3.903 in , 99.058 mm

Ring Width: 1.2/1.2/3MM

Compression Height: 1.330"

Pin Diameter: 0.943"

Connecting Rod Length: 6.098"

Crankshaft Stroke: 3.622"

Piston Series: 1 - FX 4032 Alloy

Alloy: 4032 Alloy

Cylinder Head: LS1,LS2,LS3 and LS7

TDC Assembly Height: 9.239"

Piston Top Aprox. Comp. Ratio:

+6cc Dome Top LS1,LS2,LS3 and LS7
ChamberComp Ratio
6411.79 to 1
6611.48 to 1
7210.62 to 1

Download Piston Instructions

Piston Specs

Engine Brand: Chevy

Engine Family: Chevy LS

Engine Size: 4.8 - 5.3 - LS1 - LS6

With/Without Rings: Without Rings

Cylinder Bore Size: 3.903 in , 99.058 mm

Ring Width: 1.2/1.2/3MM

Compression Height: 1.330"

Pin Diameter: 0.943"

Connecting Rod Length: 6.098"

Crankshaft Stroke: 3.622"

Piston Series: 1 - FX 4032 Alloy

Alloy: 4032 Alloy

Cylinder Head: LS1,LS2,LS3 and LS7

TDC Assembly Height: 9.239"

Piston Top Aprox. Comp. Ratio:

+6cc Dome Top LS1,LS2,LS3 and LS7
ChamberComp Ratio
6411.79 to 1
6611.48 to 1
7210.62 to 1

Download Piston Instructions

Engine Power TV

The DSS FX, X-Groove Feature