12763 Diamond Pistons BB Chevy Forged Big Chief/Big Duke 18° Dome 4.600 Bore

Fits BB Chevy, Bore 4.600, Stroke 4.500, Rod Length 6.700, Dome 13cc, Set of 8 Pistons

$1,484.14

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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.

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Description

Diamond Forged pistons for Big Block Chevy are designed for use with Dart Big Chief and Brodix Big Duke 18 Degree Cylinder Heads. Gas ports added for maximum ring seal, .043 1/16 3/16 ring lands. Compression Ratios figured for .005" to .020" deck height @ 9.800" and 10.200". Premium .185 wall H-13 tool steel wrist pins are included. Gasket volume = 11.3cc, top ring down from piston crown .340" @ 1.240" C.D. to 1.270", .290" @ 1.120" C.D. Valve relief depths .315" intake and .068" exhaust.

Compression Ratio with 95cc Heads 13.6:1
Compression Ratio with 100cc Heads 13.0:1
Advertised piston weight 643 grams

Specifications

More Information
CNC Part Number	DRP-12763
Price	$1,484.14
Manufacturer's Part Number	12763
Brands	Diamond
Part Types	Engine Piston
Departments	Parts
Vehicle Make	Chevy BB
Bore Size	4.600
Crankshaft Stroke	4.500
Rod Length	6.700
Piston Type	Dome
Compression Height	1.240
Piston Material	2618 Forged
Piston Ring Size	.043 1/16 3/16
Wrist Pin Size	0.990
Custom Notices	⚠ PROP 65 WARNING

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