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Instruction Sheets for Part Number UEM-IC861-140
Pistons, Forged, Dish, 4.500 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Ford, Big Block, Set of 8
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Estimated Ship Date: Oct 23, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
IC861.140
Part Type:
Product Line:
Summit Racing Part Number:
UEM-IC861-140
UPC:
800745134158
Piston Rings Included:
No
Bore (in.):
4.500 in.
Bore (mm):
114.300mm
Stroke:
4.300 in.
Engine Stroke Type:
Stroked
Rod Length:
6.800 in.
Piston Style:
Dish, with single valve relief
Piston Material:
Forged aluminum
Compression Height (in.):
1.350 in.
Piston Head Volume (cc):
+22.00cc
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 as a set of 8.
Notes:
Spacer ring included. Will fit Ford Super Cobra Jet (M6049) cylinder heads. Maximum 1.250 inch connecting rod small end. The listed stroke, rod length, and compression height is for the 520 cubic inch applications. Also works with 4.5 in. stroke and 6.700 in. rod length to get 545 cubic inches.
ICON Premium Forged Pistons
ICON premium forged pistons are made from high-strength, heat-treated aluminum alloy. They feature a diamond-machined skirt, head, mini-grooves, pin bore, gas accumulator, ring grooves, and pressure-drilled pin hole oiling. The pistons have a V-rib design for light weight, strength, and maximum piston cooling. Compare weight, performance, design, and cost—and you will win with ICON!
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