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JE Pistons Big Block Flat Top Pistons
Piston, Forged, Flat Top, Single Valve Relief, 4.530 in. Bore, 4.000 in. Stroke, 6.135 in. Rod, 1.645 in. Compression, Chevy, Each
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Overview
Brand:
Manufacturer's Part Number:
257985S
Part Type:
Product Line:
Summit Racing Part Number:
JEP-257985-1
UPC:
193564197825
Piston Rings Included:
No
Bore (in.):
4.530 in.
Bore (mm):
115.062mm
Stroke:
4.000 in.
Engine Stroke Type:
Stock
Rod Length:
6.135 in.
Piston Style:
Flat top, with single valve relief
Piston Material:
Forged aluminum
Compression Height (in.):
1.645 in.
Piston Head Volume (cc):
+3.00cc
Wrist Pin Style:
Press-fit or floating
Wrist Pin Retainers Included:
Yes
Wrist Pin Included:
Yes
Pin Diameter (in.):
0.990 in.
Piston Ring Thickness:
1/16 in. x 1/16 in. x 3/16 in.
File Fit:
No
Gapless:
No
Remanufactured:
No
Quantity:
Sold individually.
JE Pistons Big Block Flat Top Pistons
These big block flat top pistons by JE Pistons are compatible with forced induction, nitrous, and angle-milled heads. Valve reliefs will accommodate oversized valves and long-duration, tight lobe separation cams. Their compression height is figured using a 9.780 in. block height with zero deck clearance. Precision CNC-machined ring grooves accept 1/16, 1/16, 3/16 rings. These pistons will fit both open and closed chamber cylinder heads.
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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