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Instruction Sheets for Part Number UEM-SIC9958-100
Pistons, FHR, Forged 4032 Aluminum, 4.350 in. Bore, 3.760 in. Stroke, Dome, Chevy, Big Block, Each
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Estimated Ship Date: Oct 19, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
SIC9958.100
Part Type:
Product Line:
Summit Racing Part Number:
UEM-SIC9958-100
UPC:
800745228420
Piston Rings Included:
No
Bore (in.):
4.350 in.
Bore (mm):
110.490mm
Stroke:
3.760 in.
Engine Stroke Type:
Stock
Actual Engine Displacement:
7.3L/447
Rod Length:
6.135 in.
Piston Style:
Dome, with no valve reliefs
Piston Material:
Forged aluminum
Compression Height (in.):
1.765 in.
Dome Height (in.):
0.450 in.
Piston Head Volume (cc):
-28.20cc
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:
5/64 in. x 5/64 in. x 3/16 in.
File Fit:
No
Gapless:
No
Top Ring Thickness:
5/64 in.
Second Ring Thickness:
5/64 in.
Oil Ring Thickness:
3/16 in.
Remanufactured:
No
Quantity:
Sold individually.
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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