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United Engine Machine IC9916.030

Chevy 383ci FHR Forged Pistons Hollow Dome Top .400

United Engine Machine IC9916.030


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United Engine Machine IC9916.030 Chevy 383ci FHR Forged Pistons Hollow Dome Top .400 $451.99
To order this item contact Customer Service at 1-800-345-4545.
Chevy 383ci FHR Forged Pistons
  • Hollow Dome Top .400
  • 4.030'' Bore (+.030'')
  • Use w/5.700'' Connecting Rod & 3.750'' Crank Stroke
  • Comp. Ratio: 16.3/58cc; 14.7/64cc; 12.3/76cc
  • 8/pkg

  • United Engine Machine IC9916.030 Details

    Chevy 383ci

  • Dome Top Pistons
  • Use w/5.700'' Connecting Rods
  • Use with Chevy 350ci Block and 400ci Crankshaft
  • Technical Specs:
  • Alloy: Premium 4032 Alloy
  • Bore: 4.030''
  • Crankshaft Stroke: 3.750''
  • Connecting Rod Length: 5.700''
  • Deck Height: 9.025''
  • Compression Height: 1.433''
  • Pin Size: 0.927'' x 2.750''
  • Pin Location: Centered
  • Hollow Dome Top: .400 15.2cc 2 Symmetrical Valve Reliefs
  • Intake Valve Relief: N/A
  • Exhaust Valve Relief: N/A
  • Top Landing Height: 0.250''
  • Ring Grooves: 5/64'' Top; 5/64'' Middle; 3/16'' Bottom
  • Gram Weight: 559/132
  • Compression Ratio: 16.3:1 w/58cc Heads; 14.7:1 w/64cc Heads; 12.3:1 w/76cc
  • Use with 350ci block and 400ci crankshaft. This is a stroked 350ci chevy combination.

  • Specifications:

    Manufacturer's Part Number:

    Formed Head Relief Design Pistons

    The Icon FHR (Formed Head Relief) series are an ''Off The Shelf'' piston loaded with premium features that are usually found in specialty custom made pistons. FHR pistons have valve reliefs that are formed in as the piston blank is pressed into the die. Many of the domed models are solid which allows tailoring the dome height for a specific compression ratio. Forged from 4032 Alloy material containing 11% silicon content which controls the thermal expansion so a tighter piston to wall clearance may be used over the 2618 alloy. The additional silicon wil also increase wearability on the skirts and pin bores making this an ideal material for street and some boosted applications.


    • Premium 4032 Alloy
    • Die Formed Valve Reliefs
    • Top Land Mini Groove Technology Reduces Friction
    • Diamond Finished Piston Skirts
    • Second Land Accumulator Grooves Increase Stability in the Bore
    • Tru-Arc Lock Rings
    • Spacer rings included in short compression heights that intersect the wrist pin bore
    • Sold in Sets (except when noted as 1 piston per package)

      Click here for reference guide to piston top designs