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Instruction Sheets for Part Number UEM-IC9983070
Pistons, FHR, Forged 4032 Aluminum, 4.320 in. Bore, 4.250 in. Stroke, Dome, Chevy, Big Block, Set of 8
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Estimated Ship Date: Dec 11, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
IC9983.070
Part Type:
Product Line:
Summit Racing Part Number:
UEM-IC9983070
UPC:
800745248428
Piston Rings Included:
No
Bore (in.):
4.320 in.
Bore (mm):
109.728mm
Stroke:
4.250 in.
Engine Stroke Type:
Stroked
Actual Engine Displacement:
8.1L/498
Rod Length:
6.385 in.
Piston Style:
Dome, with no valve reliefs
Piston Material:
Forged aluminum
Compression Height (in.):
1.270 in.
Piston Head Volume (cc):
-15.00cc
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
Top Ring Thickness:
1/16 in.
Second Ring Thickness:
1/16 in.
Oil Ring Thickness:
3/16 in.
Remanufactured:
No
Quantity:
Sold as a set of 8.
Notes:
Pistons are made of forged 4032 alloy aluminum.
ICON FHR Series Pistons
ICON Pistons FHR (Forged Head Relief) Serie features VMS 75 alloy, true arc-style lock rings, broached pin holes, and breakthrough oil returns—all designed to be easy on your wallet! In addition, most flat-top, dish, and dome styles are available in an offset pin design, which will help to quiet those street motors. Sets with KTM after the product number will include piston rings. ICON FHR Series pistons are offered for a wide variety of specific make/model and engine applications.
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