Chevy 383ci Forged Pistons Flat Top

Name: Chevy 383ci Forged Pistons Flat Top
Brand: UNITED ENGINE MACHINE
SKU: 648-IC728.030
Price: 736.87 USD
Availability: InStock

^$736⁸⁷

Ships on 09/09/2026

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Chevy 383ci

Flat Top Pistons

Use w/5.700'' Connecting Rods

Use with Chevy 350ci Block and 400ci Crankshaft

Flat Top
4.030'' Bore (+.030'')
Use w/5.700'' Connecting Rod & 3.750'' Crank Stroke
Comp. Ratio: 12.0/58cc; 11.1/64cc; 9.8/76cc
8/pkg

Technical Specs:
Alloy: Premium High Ductility 2618
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: -4.9cc 2 Symmetrical Valve Reliefs
Intake Valve Relief: 0.264' Depth / 2.200' Diameter
Exhaust Valve Relief: 0.264' Depth / 1.880' Diameter
Top Landing Height: 0.222'
Ring Grooves: 1/16' Top; 1/16' Middle; 3/16' Bottom
Gram Weight: 476/132
Compression Ratio: 12.0:1 w/58cc Heads; 11.1:1 w/64cc Heads; 9.8:1 w/76cc
Use with 350ci block and 400ci crankshaft. This is a stroked 350ci chevy combination.

Part TypePiston

BrandUNITED ENGINE MACHINE

Part CategoryPerformance Parts

Part FitmentSemi Universal

Vendor Part NumberIC728.030

Package Qty1

Package TypeEA

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Some parts are not legal for use in California or other states with similar laws / regulations

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