8145-4185 420 Small Block Chevy SX Series -21cc Dish Top Forged Piston Set. 4.185 bore

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SKU: 8145-4185

8145-4185 420 Small Block Chevy SX Series -21cc Dish Top Forged Piston Set. 4.185 bore

Name: 8145-4185 420 Small Block Chevy SX Series -21cc Dish Top Forged Piston Set. 4.185 bore
Brand: DSS RACING
SKU: 8145-4185
Price: 539.95 USD
Availability: InStock

$539.95

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420 Small Block Chevy SX Series Pistons 4032 Alloy Comp Hgt: 1.362" -21cc Dish Top Pin: .927 Ring Grooves: 1/16-1/16-3/16" Stroke: 3.875" Rod: 5.700" Aprox Comp Ratio: 58cc-10.91, 64cc-10.28, 70cc-9.73

Piston Specs

Engine Brand: Chevy

Engine Family: Small Block Chevy

Engine Size: 420

With/Without Rings: Without Rings

Cylinder Bore Size: 4.185 in - 106.22 mm

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

Compression Height: 1.362"

Pin Diameter: .927

Connecting Rod Length: 5.700"

Crankshaft Stroke: 3.875"

Piston Series: SX Series

Alloy: Forged 4032

Cylinder Head: SBC 23 Degree

TDC Assembly Height: 9.000

Piston Top Aprox. Comp. Ratio:

-21cc Dish Top
Chamber	Comp. Ratio
58cc	10.91 to 1
64cc	10.28 to 1
70cc	9.73 to 1

Download Piston Instructions

Piston Specs