K3-6114-4125-421-Pontiac Early and Late FXK3 Series -14cc Dish Top Pontiac Early and Late-Forged-Piston-Set- 4.125 inch bore
K3-6114-4125-421-Pontiac Early and Late FXK3 Series -14cc Dish Top Pontiac Early and Late-Forged-Piston-Set- 4.125 inch bore
K3-6114-4125-421-Pontiac Early and Late FXK3 Series -14cc Dish Top Pontiac Early and Late-Forged-Piston-Set- 4.125 inch bore
K3-6114-4125-421-Pontiac Early and Late FXK3 Series -14cc Dish Top Pontiac Early and Late-Forged-Piston-Set- 4.125 inch bore
Load image into Gallery viewer, K3-6114-4125-421-Pontiac Early and Late FXK3 Series -14cc Dish Top Pontiac Early and Late-Forged-Piston-Set- 4.125 inch bore
Load image into Gallery viewer, K3-6114-4125-421-Pontiac Early and Late FXK3 Series -14cc Dish Top Pontiac Early and Late-Forged-Piston-Set- 4.125 inch bore
Load image into Gallery viewer, K3-6114-4125-421-Pontiac Early and Late FXK3 Series -14cc Dish Top Pontiac Early and Late-Forged-Piston-Set- 4.125 inch bore
Load image into Gallery viewer, K3-6114-4125-421-Pontiac Early and Late FXK3 Series -14cc Dish Top Pontiac Early and Late-Forged-Piston-Set- 4.125 inch bore

SKU: K3-6114-4125

K3-6114-4125-421-Pontiac Early and Late FXK3 Series -14cc Dish Top Pontiac Early and Late-Forged-Piston-Set- 4.125 inch bore

$1,054.95
$1,054.95
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Made in the USA

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421 Pontiac Early and Late FX Comp Height: 1.585 -14cc Dish Top PIN: .980 Ring Groove: 1/16-1/16-3/16" Stroke: 4 ROD: 6.625 Forged and Machined in Saint Charles Illinois USA! Boost and NOS Ready! (Moderate to Extreme Levels) Boost and NOS Ready! (Moderate to High Levels) Includes matching DSS Racing XP Severe Duty ring set. Comp Ratio: 62cc-11.34, 87cc-8.99, 124cc-6.97


Engine Brand: Pontiac

Engine Family: Pontiac Early and Late

Engine Size: 421

With/Without Rings: Includes Rings

Cylinder Bore Size: 4.125 in - 104.69 mm

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

Compression Height: 1.585

Pin Diameter: .980

Connecting Rod Length: 6.625 in

Crankshaft Stroke: 4.000 in

Piston Series: 3 - FX Series

Alloy: Forged 2618

Cylinder Head: Pontiac Early and Late

TDC Assembly Height: 10.21

Piston Top Aprox. Comp. Ratio:

-14cc Dish Top Pontiac Early and Late
ChamberComp Ratio
62cc11.34 to 1
87cc8.99 to 1
124cc6.97 to 1

Download Piston Instructions

Piston Specs

Engine Brand: Pontiac

Engine Family: Pontiac Early and Late

Engine Size: 421

With/Without Rings: Includes Rings

Cylinder Bore Size: 4.125 in - 104.69 mm

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

Compression Height: 1.585

Pin Diameter: .980

Connecting Rod Length: 6.625 in

Crankshaft Stroke: 4.000 in

Piston Series: 3 - FX Series

Alloy: Forged 2618

Cylinder Head: Pontiac Early and Late

TDC Assembly Height: 10.21

Piston Top Aprox. Comp. Ratio:

-14cc Dish Top Pontiac Early and Late
ChamberComp Ratio
62cc11.34 to 1
87cc8.99 to 1
124cc6.97 to 1

Download Piston Instructions

Engine Power TV

The DSS FX, X-Groove Feature