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Icon Pistons FHR (Forged Head Relief) Series
Icon FHR (Forged Head Relief) Series features 4032 alloy, true arc-style lockrings, broached pin holes, break-through oil returns, and 5/64" ring grooves... all designed to be easy on your wallet! In addition, most flat top and dish applications are available in an offset pin design which will help quiet those street motors. Lock rings and pins included. Most available in std., .030", .040" and .060" over sizes. Sets of 8.
Forged Head Relief Design
VMS 75 Alloy Forgings
Break-thru Oil Returns
Broached Pin Holes
Heavy Duty Pins & Lock Rings included
Part Type: Pistons
Model: FHR Series Forged Pistons
Application: Pontiac 400
Piston Style: Flat Top w/ 4 Valve Relief
Cylinder Bore: 4.160"
Compression Distance: 1.714"
Crankshaft Stroke/Rod Length: 3.750" with 6.200" Connecting Rod (ci)
Deck Height: 10.250"
Dome Volume: +10.8cc
Compression Ratio: 3.750" Stroke w/72cc Heads: 10.1
Compression Ratio: 3.750" " Stroke w/87cc Heads: 8.8
Compression Ratio: 3.750" Stroke w/96cc Heads: 8.2
Piston Material: Forged 4032 Alloy
Accumulator Groves: Yes
Forced Pin Oilers: No
Gas Ports: No
Skirt Coating: No
Lock Removal Indents: No
Average Piston Weight: 563
Wrist Pin Style: Press-Fit or Floating
Wrist Pins Included: Yes
Wrist Pin Size: .980" x 2.750"
Average Wrist Pin Weight: 149
Pin Lock Included: TruArc
Ring Grove Sizes: 5/64", 5/64", 3/16"
Piston Rings Included: No
Manufacturer: United Engine & Machine Company
Manufacturer's Part Number: IC9946.040
Weight: 13.5 lbs.
Warranty: Sold without warranty or guarantee of any kind
Quantity: Sold as Sets of 8
Note: Offset pins. Will work with 14 degree & 20 degree heads.
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