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Vehicle Info NeededUNITED ENGINE MACHINEPART NUMBER: 648-IC9961.030
Chevy 383ci FHR Forged Pistons Flat Top 4V
$57693
Ships on 09/15/2026
Lowest Price GuaranteeChevy 383ciFlat Top Pistons Use w/6.000'' Connecting Rods Use with Chevy 350ci Block and 400ci Crankshaft
Chevy 383ci FHR Forged Pistons Flat Top 4V 4.030'' Bore (+.030'') Use w/6.000'' Connecting Rod & 3.750'' Crank Stroke Comp. Ratio: 11.1/58cc; 10.4/64cc; 9.2/76cc 8/pkg
Technical Specs:
- Alloy: Premium 4032 Alloy
- Bore: 4.030'
- Crankshaft Stroke: 3.750'
- Connecting Rod Length: 6.000'
- Deck Height: 9.025'
- Compression Height: 1.125'
- Pin Size: 0.927' x 2.750'
- Pin Location: Offset
- Flat Top: 10cc 4 Symmetrical Valve Reliefs
- Intake Valve Relief: N/A
- Exhaust Valve Relief: N/A
- Top Landing Height: 0.220'
- Ring Grooves: 1/16' Top; 1/16' Middle; 3/16' Bottom
- Gram Weight: 432/132
- Compression Ratio: 11.1:1 w/58cc Heads; 10.4:1 w/64cc Heads; 9.2:1 w/76cc
- Use with 350ci block and 400ci crankshaft. This is a stroked 350ci chevy combination.
Part TypePiston
BrandUNITED ENGINE MACHINE
Package Height5.7
Package Width11.1
Package Length20.0
Weight11.24 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part NumberIC9961.030
Package Qty1
Package TypeEA
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