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Vehicle Info NeededUNITED ENGINE MACHINEPART NUMBER: 648-KB100.040
Chevy 383ci Hypereutectic Pistons Flat Top
$45492
Ships on 09/08/2026
Lowest Price GuaranteeChevy 383ciFlat Top Pistons Use w/5.700'' Connecting Rods Use with Chevy 350ci Block and 400ci Crankshaft
- Chevy 383ci Hypereutectic Pistons
- Flat Top
- 4.040'' Bore (+.040'')
- Use w/5.700'' Connecting Rod & 3.750'' Crank Stroke
- Comp. Ratio: 11.9/58cc; 11.3/62cc; 11.1/64cc; 9.7/76cc
- 8/pkg
Technical Specs: - Alloy: Hypereutectic 390
- Bore: 4.040'
- Crankshaft Stroke: 3.750'
- Connecting Rod Length: 5.700'
- Deck Height: 9.025'
- Compression Height: 1.433'
- Pin Size: 0.9272'
- Pin Location: Centered
- Flat Top: -7cc 2 Symmetrical Valve Reliefs
- Intake Valve Relief: 0.280' Depth / 2.168' Diameter
- Exhaust Valve Relief: 0.280' Depth / 2.168' Diameter
- Top Landing Height: 0.275'
- Ring Grooves: 1/16' Top; 1/16' Middle; 3/16' Bottom
- Gram Weight: 500/145
- Compression Ratio: 11.9:1 w/58cc Heads; 11.3:1 w/62cc Heads; 11.1:1 w/64cc; 9.7:1 w/76cc Heads
- Use with 350ci block and 400ci crankshaft. This is a stroked 350ci chevy combination.
Part TypePiston
BrandUNITED ENGINE MACHINE
Package Height4.5
Package Width4.5
Package Length4.8
Weight1.6 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part NumberKB100.040
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
