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Je Pistons 258244 Gm Bbc Open Chamber Dome 498ci 4.320b 4.250s 6.385r 13.1:1 on 2040-parts.com

US $840.00
Location:

Fort Lauderdale, Florida, United States

Fort Lauderdale, Florida, United States
Condition:New Brand:JE Pistons Warranty:Yes Manufacturer Part Number:258244 Country/Region of Manufacture:United States Surface Finish:Forged Aluminum Engine Make:Chevrolet / GM

With over 60 years of experience, JE Pistons is a leader in high performance forged pistons. Top engine builders in NASCAR, Sports Car, NHRA, AMA Supercross and others choose JE Pistons over any other brand. Utilizing State-Of-The-Art CNC machines for manufacturing along with purpose-designed forgings, JE is able to maintain exacting specifications on each and every piston and hold tolerances to millionths of an inch.

These big block pistons are an excellent choice for drag race applications. Compression Height figured using 9.780 block height with zero deck clearance. These pistons will not work with Edelbrock head #6045, 6040, 6055.

Engine: 427/454 Big Block Chevy, Open Chamber Dome, Std. Deck Block, Std. Bore 4.250

Cubic Inch Displacement: 498
Bore: 4.320
Stroke: 4.250
Rod Length: 6.385
Block Height: 9.780
Compression Height: 1.270
Pin Diameter: 0.990
Crown Volume: 43cc
Weight (Grams): 559
Compression Ratio: 14.4:1 (at 110cc)
Compression Ratio: 13.1:1 (at 118cc)
Compression Ratio: 12.3:1 (at 124cc)
Alloy: Forged Aluminum

Recommended Rings (NOT Included): Ring package designed for: 1/16, 1/16, 3/16 Rings (JE P/N: J10008-4320-5 )

Notes: Oil Rail Support Included.

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