12240 Diamond Pistons BB Chevy 24/26° Forged Dome 4.470 Bore

Fits BB Chevy, Bore 4.470, Stroke 4.250, Rod Length 6.385, Dome 12cc, Set of 8 Pistons, Made to order

Special Price $1,003.88 Regular Price $1,127.95

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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

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 10.5:1
Compression Ratio with 118cc Heads 10.0:1
Advertised piston weight 642 grams
Made to order

Specifications

More Information
Price	$1,127.95
Vehicle Make	Chevy BB
Bore Size	4.470
Crankshaft Stroke	4.250
Rod Length	6.385
Piston Type	Dome
Compression Height	1.280
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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