12850 Diamond Blown Alcohol Pistons 24/26° BB Chevy Dome 4.500 Bore

Fits BB Chevy, Bore 4.500, Stroke 4.000, Rod Length 6.385, Dome 35cc, Set of 8 Pistons. Made to order

$1,714.93

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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 Blown Alcohol Dome Pistons are designed for use with most open chamber 24 and 26 Degree heads. Designed for blown alcohol applications. 1/16, 1/16, 3/16 ring land with added gas ports for better ring seal. Premium H-13 Tool steel wrist pins included. Compression Ratios figured for .040 head gasket @ 9.800, top ring down from piston crown .340", designed for 2.350" diameter intake and 1.900" exhaust valves.

Compression Ratio with 112cc Heads 12.0:1
Compression Ratio with 118cc Heads 11.3:1
Advertised piston weight 714 grams

Specifications

More Information
CNC Part Number	DRP-12850
Price	$1,714.93
Sold As	Set
Manufacturer's Part Number	12850
Brands	Diamond
Part Types	Engine Piston
Departments	Parts
Vehicle Make	Chevy BB
Bore Size	4.500
Crankshaft Stroke	4.000
Rod Length	6.385
Piston Type	Dome
Compression Height	1.395
Piston Material	2618 Forged
Piston Ring Size	1/16 1/16 3/16
Wrist Pin Size	0.990
Custom Notices	⚠ PROP 65 WARNING

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