K2-6100-4150-389-Pontiac Late FXK2 Series -7cc Flat Top Pontiac Late-Forged-Piston-Set- 4.15 inch bore
K2-6100-4150-389-Pontiac Late FXK2 Series -7cc Flat Top Pontiac Late-Forged-Piston-Set- 4.15 inch bore
K2-6100-4150-389-Pontiac Late FXK2 Series -7cc Flat Top Pontiac Late-Forged-Piston-Set- 4.15 inch bore
K2-6100-4150-389-Pontiac Late FXK2 Series -7cc Flat Top Pontiac Late-Forged-Piston-Set- 4.15 inch bore
Load image into Gallery viewer, K2-6100-4150-389-Pontiac Late FXK2 Series -7cc Flat Top Pontiac Late-Forged-Piston-Set- 4.15 inch bore
Load image into Gallery viewer, K2-6100-4150-389-Pontiac Late FXK2 Series -7cc Flat Top Pontiac Late-Forged-Piston-Set- 4.15 inch bore
Load image into Gallery viewer, K2-6100-4150-389-Pontiac Late FXK2 Series -7cc Flat Top Pontiac Late-Forged-Piston-Set- 4.15 inch bore
Load image into Gallery viewer, K2-6100-4150-389-Pontiac Late FXK2 Series -7cc Flat Top Pontiac Late-Forged-Piston-Set- 4.15 inch bore

SKU: K2-6100-4150

K2-6100-4150-389-Pontiac Late FXK2 Series -7cc Flat Top Pontiac Late-Forged-Piston-Set- 4.15 inch bore

$864.95
$864.95
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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.

389 Pontiac Late FX Comp Height: 1.71 -7cc Flat Top PIN: .980 Ring Groove: 1/16-1/16-3/16" Stroke: 3.75 ROD: 6.625 Forged and Machined in Saint Charles Illinois USA! Boost and NOS Ready! (Moderate to High Levels) Includes matching DSS Racing Ductile Moly ring set. Comp Ratio: 62cc-11.68, 87cc-9.09, 124cc-6.95


Engine Brand: Pontiac

Engine Family: Pontiac Late

Engine Size: 389

With/Without Rings: Includes Rings

Cylinder Bore Size: 4.150 in - 105.33 mm

Ring Width: 1/16-1/16-3/16"

Compression Height: 1.710

Pin Diameter: .980

Connecting Rod Length: 6.625 in

Crankshaft Stroke: 3.750 in

Piston Series: 2 - FX Series

Alloy: Forged 2618

Cylinder Head: Pontiac Late

TDC Assembly Height: 10.21

Piston Top Aprox. Comp. Ratio:

-7cc Flat Top Pontiac Late
ChamberComp Ratio
62cc11.68 to 1
87cc9.09 to 1
124cc6.95 to 1

Download Piston Instructions

Piston Specs

Engine Brand: Pontiac

Engine Family: Pontiac Late

Engine Size: 389

With/Without Rings: Includes Rings

Cylinder Bore Size: 4.150 in - 105.33 mm

Ring Width: 1/16-1/16-3/16"

Compression Height: 1.710

Pin Diameter: .980

Connecting Rod Length: 6.625 in

Crankshaft Stroke: 3.750 in

Piston Series: 2 - FX Series

Alloy: Forged 2618

Cylinder Head: Pontiac Late

TDC Assembly Height: 10.21

Piston Top Aprox. Comp. Ratio:

-7cc Flat Top Pontiac Late
ChamberComp Ratio
62cc11.68 to 1
87cc9.09 to 1
124cc6.95 to 1

Download Piston Instructions

Engine Power TV

The DSS FX, X-Groove Feature