21013-R1-8 Diamond Pistons Competition BB Chevy 454 20° Dome 4.605 Bore

Fits Big Block Chevy 454 with 20° heads, 4.605 Bore, 4.750 Stroke, 6.700 Rod Length, 23cc Dome, Set of 8 Pistons and Rings

$1,567.97

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⚠ PROP 65 WARNING

⚠ WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer. Please contact us to obtain a list of harmful chemicals. For more information, go to www.P65Warnings.ca.gov.

Description

Diamond Pistons are some of the best aftermarket pistons on the market. Trust your new engine with a set of Diamond Pistons

Designed to work with Brodix SR20 and Dart 20° cylinder heads

Vertical gas ports for maximum ring seal

Inboard forging design for maximum strength

Suitable for small to medium nitrous applications

Moly skirt coating for friction loss and skirt wear protection

Premium 0.043 x 0.043 x 3.0 ring package (Included)

H-13 tool steel 0.185W wrist pins included

Top ring down dimensions: 0.295"

Will work with an intake valve size of 2.400" and exhaust valve size of 1.800"

Valve pocket depth 0.345" intake and -0.30" exhaust

Made from 2618 alloy

Compression Ratio:

95cc 16.1:1

Specifications

More Information
CNC Part Number	DRP-21013-R1-8
Price	$1,567.97
Manufacturer's Part Number	21013-R1-8
Brands	Diamond
Part Types	Engine Piston
Departments	Parts
Vehicle Make	Chevy BB
Bore Size	4.605
Crankshaft Stroke	4.750
Rod Length	6.700
Piston Type	Dome
Compression Height	1.120
Piston Material	2618 Forged
Piston Ring Size	.043 .043 3.0
Wrist Pin Size	0.990
Custom Notices	⚠ PROP 65 WARNING

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