Load image into Gallery viewer, K1-2467-4185  420 Small Block Chevy K1-FX Series  +4cc Dome Top  Forged Piston Set. 4.185 bore
Load image into Gallery viewer, DISCONTINUED USE K1-2468-4185  420 Small Block Chevy K1-FX Series  +4cc Dome Top  Forged Piston Set. 4.185 bore
Load image into Gallery viewer, DISCONTINUED USE K1-2468-4185  420 Small Block Chevy K1-FX Series  +4cc Dome Top  Forged Piston Set. 4.185 bore

SKU: K1-2467-4185

DISCONTINUED USE K1-2468-4185 420 Small Block Chevy K1-FX Series +4cc Dome Top Forged Piston Set. 4.185 bore

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420 Small Block Chevy K1-FX 4032 Alloy With Rings Comp Hgt: 1.062" +4cc Dome Top Pin: .927 Ring Grooves: 1.2/1.2/3MM Stroke: 3.875" Rod: 6.000" Boost and NOS Ready! (Moderate to High Levels) Aprox Comp Ratio: 58cc-14.85, 64cc-13.64, 70cc-12.63

Engine Brand: Chevy

Engine Family: Small Block Chevy

Engine Size: 420

With/Without Rings: Includes Rings

Cylinder Bore Size: 4.185 in - 106.22 mm

Ring Width: 1.2/1.2/3MM

Compression Height: 1.062"

Pin Diameter: .927

Connecting Rod Length: 6.000"

Crankshaft Stroke: 3.875"

Piston Series: 1-FX Series

Alloy: Forged 4032

Cylinder Head: SBC 23 Degree

TDC Assembly Height: 9.000

Piston Top Aprox. Comp. Ratio:

+4cc Dome Top
ChamberComp. Ratio
58cc14.85 to 1
64cc13.64 to 1
70cc12.63 to 1

Download Piston Instructions

Piston Specs

Engine Brand: Chevy

Engine Family: Small Block Chevy

Engine Size: 420

With/Without Rings: Includes Rings

Cylinder Bore Size: 4.185 in - 106.22 mm

Ring Width: 1.2/1.2/3MM

Compression Height: 1.062"

Pin Diameter: .927

Connecting Rod Length: 6.000"

Crankshaft Stroke: 3.875"

Piston Series: 1-FX Series

Alloy: Forged 4032

Cylinder Head: SBC 23 Degree

TDC Assembly Height: 9.000

Piston Top Aprox. Comp. Ratio:

+4cc Dome Top
ChamberComp. Ratio
58cc14.85 to 1
64cc13.64 to 1
70cc12.63 to 1

Download Piston Instructions

Engine Power TV

The DSS FX, X-Groove Feature