12730 Diamond Nitrous Pistons BB Chevy 454 24° 26° Dome 4.625 Bore

Fits Big Block Chevy 454 with 24° / 26° heads, 4.625 Bore, 4.375 Stroke, 6.385 Rod Length, 42cc Dome, 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.

Description

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

3D milling on piston crowns for a ready to install finish

Valve pockets designed to work with most aftermarket 24° 26° cylinder heads

Vertical gas ports for better ring seal

Top ring down dimensions: 0.325"

Ratios figured for 0.040 head gasket @ 9.800 deck & 10.200 deck

Premium 0.043 x 0.043 x 3/16 ring package (Not Included)

Premium H-13 0.205W wrist pins included

Valve pocket depth 0.322" intake and -0.130" exhaust

Will work with an intake valve size of 2.350" and exhaust valve size of 1.900"

Made from 2618 alloy and designed for small-medium nitrous levels (Up to 450HP)

Made to order

Compression Ratio:

112cc 14.8:1

118cc 13.9:1

121cc 13.5.1

Specifications

More Information
CNC Part Number	DRP-12730
Price	$1,484.14
Manufacturer's Part Number	12730
Brands	Diamond
Part Types	Engine Piston
Departments	Parts
Vehicle Make	Chevy BB
Bore Size	4.625
Crankshaft Stroke	4.375
Rod Length	6.385
Piston Type	Dome
Compression Height	1.215
Piston Material	2618 Forged
Piston Ring Size	.043 .043 3/16
Wrist Pin Size	0.990
Custom Notices	⚠ PROP 65 WARNING

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