Load image into Gallery viewer, K1-6635-4195-390-AMC V8 FXK1 Series -25cc Dish Top AMC-Forged-Piston-Set- 4.195 inch bore
Load image into Gallery viewer, K1-6635-4195-390-AMC V8 FXK1 Series -25cc Dish Top AMC-Forged-Piston-Set- 4.195 inch bore
Load image into Gallery viewer, K1-6635-4195-390-AMC V8 FXK1 Series -25cc Dish Top AMC-Forged-Piston-Set- 4.195 inch bore
Load image into Gallery viewer, K1-6635-4195-390-AMC V8 FXK1 Series -25cc Dish Top AMC-Forged-Piston-Set- 4.195 inch bore

SKU: K1-6635-4195

K1-6635-4195-390-AMC V8 FXK1 Series -25cc Dish Top AMC-Forged-Piston-Set- 4.195 inch bore

Regular price $834.95
Sale price $834.95 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.

390 AMC V8 FX Comp Height: 1.59 -25cc Dish Top PIN: 1.000 Ring Groove: 1/16-1/16-3/16" Stroke: 3.574 ROD: 5.858 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: 50cc-10.63, 54cc-10.19, 58cc-9.79


Engine Brand: AMC

Engine Family: AMC V8

Engine Size: 390

With/Without Rings: Includes Rings

Cylinder Bore Size: 4.195 in - 106.47 mm

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

Compression Height: 1.590

Pin Diameter: 1.000

Connecting Rod Length: 5.858 in

Crankshaft Stroke: 3.574 in

Piston Series: 1 - FX Series

Alloy: Forged 4032

Cylinder Head: AMC

TDC Assembly Height: 9.235

Piston Top Aprox. Comp. Ratio:

-25cc Dish Top AMC
ChamberComp Ratio
50cc10.63 to 1
54cc10.19 to 1
58cc9.79 to 1

Download Piston Instructions

Piston Specs

Engine Brand: AMC

Engine Family: AMC V8

Engine Size: 390

With/Without Rings: Includes Rings

Cylinder Bore Size: 4.195 in - 106.47 mm

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

Compression Height: 1.590

Pin Diameter: 1.000

Connecting Rod Length: 5.858 in

Crankshaft Stroke: 3.574 in

Piston Series: 1 - FX Series

Alloy: Forged 4032

Cylinder Head: AMC

TDC Assembly Height: 9.235

Piston Top Aprox. Comp. Ratio:

-25cc Dish Top AMC
ChamberComp Ratio
50cc10.63 to 1
54cc10.19 to 1
58cc9.79 to 1

Download Piston Instructions

Engine Power TV

The DSS FX, X-Groove Feature