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JE Pistons Pro Mod-Style GP 18-Degree Pistons 194910
Part Number: JEP-194910-8
JE Pistons Pro Mod-Style GP 18-Degree Pistons
Pistons, Forged, Dome, 2-Valve Reliefs, 4.610 in. Bore, 4.250 in. Stroke, 6.385 in. Rod, 1.280 in. Compression, Chevy, Set of 8
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Estimated Ship Date: Nov 13, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
194910
Part Type:
Product Line:
Summit Racing Part Number:
JEP-194910-8
UPC:
193564043665
Piston Rings Included:
No
Bore (in.):
4.610 in.
Bore (mm):
117.094mm
Stroke:
4.250 in.
Engine Stroke Type:
Stroked
Actual Engine Displacement:
9.3L/568
Rod Length:
6.385 in.
Piston Style:
Dome, with two valve reliefs
Piston Material:
Forged aluminum
Compression Height (in.):
1.280 in.
Piston Head Volume (cc):
-13.00cc
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:
0.043 in. x 0.064 in. x 0.218 in.
File Fit:
No
Gapless:
No
Top Ring Thickness:
0.043 in.
Second Ring Thickness:
0.064 in.
Oil Ring Thickness:
0.218 in.
Remanufactured:
No
Quantity:
Sold as a set of 8.
Notes:
Made from 2618 alloy forged aluminum.
Special Attention:
Designed for use with Dart Big Chief 18-degree cylinder heads.
JE Pistons Pro Mod-Style GP 18-Degree Pistons
JE Pistons Pro Mod-style GP 18-degree pistons are specifically designed for nitrous applications. Their precision CNC-machined ring grooves are designed for .043 backcut, 1/16, 1/16, 3/16 rings. Their compression heights are figured at zero deck clearance.
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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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