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Vehicle Info NeededUNITED ENGINE MACHINEPART NUMBER: 648-IC9931.030-1
Chevy 383ci FHR Forged Piston Flat Top 2V
$14174
Ships on 09/10/2026
Lowest Price GuaranteeChevy 383ciFlat Top Pistons Use w/5.700'' Connecting Rods Use with Chevy 350ci Block and 400ci Crankshaft
- Chevy 383ci FHR Forged Piston
- Flat Top 2V
- 4.030'' Bore (+.030'')
- Use w/5.700'' Connecting Rod & 3.750'' Crank Stroke
- Comp. Ratio: 12.2/58cc; 11.3/64cc; 9.9/76cc
- 1/pkg
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
- Flat Top: -3.7cc 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: 536/132
- Compression Ratio: 12.2:1 w/58cc Heads; 11.3:1 w/64cc Heads; 9.9:1 w/76cc
- Use with 350ci block and 400ci crankshaft. This is a stroked 350ci chevy combination.
Part TypePiston
BrandUNITED ENGINE MACHINE
Package Height4.0
Package Width4.0
Package Length4.0
Weight1.5 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part NumberSIC9931.030
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
