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JE Pistons LS1 Extreme-Duty FSR Pistons
Piston, Forged, Flat Top, 2-Valve Reliefs, 3.898 in. Bore, 3.622 in. Stroke, 6.098 in. Rod, 1.340 in. Compression, Chevy, Left, Each
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Overview
Brand:
Manufacturer's Part Number:
321239L
Part Type:
Product Line:
Summit Racing Part Number:
JEP-321239L
UPC:
193564200747
Piston Rings Included:
No
Bore (in.):
3.898 in.
Bore (mm):
99.001mm
Stroke:
3.622 in.
Engine Stroke Type:
Stock
Actual Engine Displacement:
5.7L/346
Rod Length:
6.098 in.
Piston Style:
Flat top, with two valve reliefs
Piston Material:
Forged aluminum
Compression Height (in.):
1.340 in.
Piston Head Volume (cc):
+2.00cc
Wrist Pin Style:
Press-fit or floating
Wrist Pin Retainers Included:
Yes
Wrist Pin Included:
Yes
Pin Diameter (in.):
0.945 in.
Piston Ring Thickness:
1.50mm x 1.50mm x 3.00mm
File Fit:
No
Gapless:
No
Top Ring Thickness:
1.5mm
Second Ring Thickness:
1.5mm
Oil Ring Thickness:
3.0mm
Remanufactured:
No
Quantity:
Sold individually.
Notes:
For the left side of the engine. Made from 2618 alloy forged aluminum.
Special Attention:
Designed to work with LSX/L92 12-degree cylinder heads.
JE Pistons LS1 Extreme-Duty FSR Pistons
JE Pistons LS1 Extreme-Duty FSR pistons utilize JE's dedicated forged side relief (FSR) forging that was specifically designed for the demands of the GM LS1 Series of engines. They have also incorporated features to reduce weight and maintain the durability needed for both street and racing use. Lightweight and extremely durable, these LS1 pistons are machined for 1.5/1.5/3.0mm rings. Select the size needed for your engine.
Features:
* Accumulator grooves
* Offset wrist pin (only on .927 pin diameters)
* Round wire locks
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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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