Load image into Gallery viewer, 390 AMC V8 K1-FX Series AMC Flat Top  Piston 4.185
Load image into Gallery viewer, K1-6630-4185  390 AMC V8 K1-FX Series  -3cc AMC Flat Top  Forged Piston Set. 4.185 bore
Load image into Gallery viewer, K1-6630-4185  390 AMC V8 K1-FX Series  -3cc AMC Flat Top  Forged Piston Set. 4.185 bore

SKU: K1-6630-4185

K1-6630-4185 390 AMC V8 K1-FX Series -3cc AMC Flat Top Forged Piston Set. 4.185 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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390 AMC V8 K1-FX 4032 Alloy With Rings Comp Hgt: 1.590" -3cc AMC Flat Top Pin: 1 Ring Grooves: 1/16-1/16-3/16" Stroke: 3.574" Rod: 5.858" Boost and NOS Ready! (Moderate to High Levels) Aprox Comp Ratio: 50cc-13.98, 54cc-13.19, 58cc-12.50

Engine Brand: AMC

Engine Family: AMC V8

Engine Size: 390

With/Without Rings: Includes Rings

Cylinder Bore Size: 4.185 in - 106.22 mm

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

Compression Height: 1.590"

Pin Diameter: 1.000

Connecting Rod Length: 5.858"

Crankshaft Stroke: 3.574"

Piston Series: 1-FX Series

Alloy: Forged 4032

Cylinder Head: AMC

TDC Assembly Height: 9.235

Piston Top Aprox. Comp. Ratio:

-3cc AMC Flat Top
ChamberComp. Ratio
50cc13.98 to 1
54cc13.19 to 1
58cc12.50 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: 4.185 in - 106.22 mm

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

Compression Height: 1.590"

Pin Diameter: 1.000

Connecting Rod Length: 5.858"

Crankshaft Stroke: 3.574"

Piston Series: 1-FX Series

Alloy: Forged 4032

Cylinder Head: AMC

TDC Assembly Height: 9.235

Piston Top Aprox. Comp. Ratio:

-3cc AMC Flat Top
ChamberComp. Ratio
50cc13.98 to 1
54cc13.19 to 1
58cc12.50 to 1

Download Piston Instructions