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JE Pistons LS Series Flat Top Pistons
Piston, Forged, Flat Top, 2-Valve Reliefs, 4.080 in. Bore, 3.622 in. Stroke, 6.125 in. Rod, 1.304 in. Compression, Chevy, Right, Each
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Estimated Ship Date: Nov 16, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
311968R
Part Type:
Product Line:
Summit Racing Part Number:
JEP-311968R
Item Number:
5251202
UPC:
193564207814
Piston Rings Included:
No
Bore (in.):
4.080 in.
Bore (mm):
103.362mm
Stroke:
3.622 in.
Engine Stroke Type:
Stock
Actual Engine Displacement:
6.2L/379
Rod Length:
6.125 in.
Piston Style:
Flat top, with two valve reliefs
Piston Material:
Forged aluminum
Compression Height (in.):
1.304 in.
Piston Head Volume (cc):
+5.00cc
Wrist Pin Style:
Press-fit or floating
Wrist Pin Retainers Included:
Yes
Wrist Pin Included:
Yes
Pin Diameter (in.):
0.927 in.
Piston Ring Thickness:
0.047 in. x 0.059 in. x 0.118 in.
File Fit:
No
Gapless:
No
Remanufactured:
No
Quantity:
Sold individually.
Notes:
Fits right side exhaust valve orientation.
JE Pistons LS Series Flat Top Pistons
JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons for domestic applications, and they have been performance-proven in victory lane time and time again with the ultimate combination of durability and performance.
JE Pistons LS Series flat top pistons are single replacements. Available in different bore sizes for right or left, the pistons are specifically engineered for extreme applications up to, and including, professional competition. In such environments, the higher compression ratios and boost necessitate the high-tensile strength of forged 2618 aluminum construction. The skirts feature a proprietary Forged Side Relief (FSR) forging design that minimizes friction and power loss with reduced skirt width and saves additional weight with a shorter wrist pin. High-quality, case hardened 5115 low carbon steel wrist pins and retainers are included. Equip your engine with the best in forged pistons—JE Pistons.
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Instructions & Calculators
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