3-6857-4090-6.2-Small Block Mopar Hemi Gen III FX3 Series +4cc Dome Top Gen III Hemi-Forged-Piston-Set- 4.09 inch bore
3-6857-4090-6.2-Small Block Mopar Hemi Gen III FX3 Series +4cc Dome Top Gen III Hemi-Forged-Piston-Set- 4.09 inch bore
3-6857-4090-6.2-Small Block Mopar Hemi Gen III FX3 Series +4cc Dome Top Gen III Hemi-Forged-Piston-Set- 4.09 inch bore
3-6857-4090-6.2-Small Block Mopar Hemi Gen III FX3 Series +4cc Dome Top Gen III Hemi-Forged-Piston-Set- 4.09 inch bore
Load image into Gallery viewer, 3-6857-4090-6.2-Small Block Mopar Hemi Gen III FX3 Series +4cc Dome Top Gen III Hemi-Forged-Piston-Set- 4.09 inch bore
Load image into Gallery viewer, 3-6857-4090-6.2-Small Block Mopar Hemi Gen III FX3 Series +4cc Dome Top Gen III Hemi-Forged-Piston-Set- 4.09 inch bore
Load image into Gallery viewer, 3-6857-4090-6.2-Small Block Mopar Hemi Gen III FX3 Series +4cc Dome Top Gen III Hemi-Forged-Piston-Set- 4.09 inch bore
Load image into Gallery viewer, 3-6857-4090-6.2-Small Block Mopar Hemi Gen III FX3 Series +4cc Dome Top Gen III Hemi-Forged-Piston-Set- 4.09 inch bore

SKU: 3-6857-4090

3-6857-4090-6.2-Small Block Mopar Hemi Gen III FX3 Series +4cc Dome Top Gen III Hemi-Forged-Piston-Set- 4.09 inch bore

$939.95
$939.95
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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.

6.2 Small Block Mopar Hemi Gen III FX Comp Height: 1.275 +4cc Dome Top PIN: .945 Ring Groove: 1.2/1.2/3MM Stroke: 3.578 ROD: 6.2 Forged and Machined in Saint Charles Illinois USA! Boost and NOS Ready! (Moderate to Extreme Levels) Comp Ratio: 65cc-12.06, 74cc-10.80, 85cc-9.60


Engine Brand: Mopar

Engine Family: Small Block Mopar Hemi Gen III

Engine Size: 6.2

With/Without Rings: Without Rings

Cylinder Bore Size: 4.090 in - 103.80 mm

Ring Width: 1.2/1.2/3MM

Compression Height: 1.275

Pin Diameter: .945

Connecting Rod Length: 6.200 in

Crankshaft Stroke: 3.578 in

Piston Series: 3 - FX Series

Alloy: Forged 2619

Cylinder Head: Gen III Hemi

TDC Assembly Height: 9.264

Piston Top Aprox. Comp. Ratio:

+4cc Dome Top Gen III Hemi
ChamberComp Ratio
65cc12.06 to 1
74cc10.8 to 1
85cc9.6 to 1

Download Piston Instructions

Piston Specs

Engine Brand: Mopar

Engine Family: Small Block Mopar Hemi Gen III

Engine Size: 6.2

With/Without Rings: Without Rings

Cylinder Bore Size: 4.090 in - 103.80 mm

Ring Width: 1.2/1.2/3MM

Compression Height: 1.275

Pin Diameter: .945

Connecting Rod Length: 6.200 in

Crankshaft Stroke: 3.578 in

Piston Series: 3 - FX Series

Alloy: Forged 2619

Cylinder Head: Gen III Hemi

TDC Assembly Height: 9.264

Piston Top Aprox. Comp. Ratio:

+4cc Dome Top Gen III Hemi
ChamberComp Ratio
65cc12.06 to 1
74cc10.8 to 1
85cc9.6 to 1

Download Piston Instructions

Engine Power TV

The DSS FX, X-Groove Feature