12245 Diamond Pistons BB Chevy 24/26° Forged Dome 4.500 Bore

Fits BB Chevy, Bore 4.500, Stroke 4.250, Rod Length 6.385, Dome 28cc, Set of 8 Pistons, Made to order

$1,175.47

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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

Big Block Chevy Diamond Street Series Pistons can be used with nitrous. Pistons will fit OEM, and aftermarket open and closed chamber cylinder heads. Compression Ratios figured for .010" to .012" deck height @ 9.800". Standard 1/16" x 1/16" x 3/16" ring package (Rings not Included). Premium 8620 wrist pins included. Gasket volume = 9.6cc to 10.7cc, top ring down from piston crown .280". Valve relief depths .310" intake. Designed to accept 2.300" diameter intake valve and 1.880" exhaust valve

Compression Ratio with 112cc Heads 11.9:1
Compression Ratio with 118cc Heads 11.3:1
No advertised piston weight
Made to order

Specifications

More Information
CNC Part Number	DRP-12245
Price	$1,175.47
Manufacturer's Part Number	12245
Brands	Diamond
Part Types	Engine Piston
Departments	Parts
Vehicle Make	Chevy BB
Bore Size	4.500
Crankshaft Stroke	4.250
Rod Length	6.385
Piston Type	Dome
Compression Height	1.270
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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