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Pontiac 400ciFlat Top Pistons
- Pontiac 400ci FHR Forged Piston
- Flat Top 4V
- 4.160'' Bore (+.040'')
- Use w/6.630'' Connecting Rod & 3.750'' Crank Stroke
- Comp. Ratio: 10.1/72cc; 8.8/87cc; 8.2/96cc
- 1/pkg
Note: Will work with 14-degree and 20-degree heads.
Technical Specs: - Alloy: Premium 4032 Alloy
- Bore: 4.160'
- Crankshaft Stroke: 3.750'
- Connecting Rod Length: 6.630'
- Deck Height: 10.250'
- Compression Height: 1.714'
- Pin Size: 0.980' x 3.000'
- Pin Location: Offset
- Flat Top: -10.8cc 4 Symmetrical Valve Reliefs
- Intake Valve Relief: N/A
- Exhaust Valve Relief: N/A
- Top Landing Height: 0.270'
- Ring Grooves: 5/64' Top; 5/64' Middle; 3/16' Bottom
- Gram Weight: 563/149
- Compression Ratio: 10.1:1 w/72cc Heads; 8.8:1 w/87cc Heads; 8.2:1 w/96cc
Part TypePiston
BrandUNITED ENGINE MACHINE
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part NumberSIC9946.040
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
