JE Pistons 257954 Big Block Forged Inverted Dome 4.560 Bore

JE Pistons, BBC 555, Bore 4.560, Stroke 4.250, Rod Length 6.135, Inverted Dome -20cc, 645 Grams, Set of 8

$1,096.99

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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

JE Pistons for big blocks engines are compatible with forced induction, nitrous, and angle milled heads. The inverted dome shape has been designed for maximum efficiency and horsepower. Valve reliefs will accommodate oversized valves and long duration, tight lobe separation cams. Compression Height figured using 9.780" block height with zero deck clearance. Precision CNC machined ring grooves accept 1/16, 1/16, 3/16 rings. Will fit both open and closed chamber cylinder heads.

Includes:

Pin #990-2930-18-51S (174g) - 1.245" CD and above

Double spiral locks (#990-042-CS)

Compression Ratio:

110cc 9.0:1

118cc 8.6:1

124cc 8.3:1

Specifications

More Information
CNC Part Number	JE-257954
Price	$1,096.99
Manufacturer's Part Number	257954
Brands	JE
Part Types	Engine Piston
Departments	Parts
Vehicle Make	Chevy BB
Bore Size	4.560
Crankshaft Stroke	4.250
Rod Length	6.135
Piston Type	Dish
Compression Height	1.520
Piston Material	2618 Forged
Piston Ring Size	1/16 1/16 3/16
Wrist Pin Size	0.990
Custom Notices	⚠ PROP 65 WARNING