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Product Discontinued
UNITED ENGINE MACHINEPART NUMBER: 648-KB346.030-1
Pontiac 400ci Hypereutectic Piston D-Cup Dish 17cc +030
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This product is no longer available. Please call customer service for assistance at 1-800-345-4545.
Pontiac 400ciStep Dish
- Pontiac 400ci Hypereutectic Piston
- D-Cup Dish -17cc
- 4.150" Bore (+.030")
- Use w/6.630'' Connecting Rod & 3.750'' Crank Stroke
- Comp. Ratio: 9.6:1/71cc; 8.4:1/87cc; 7.8:1/96cc; 7.1:1/111cc
- 1/pkg
Note: Designed to work with 1967 and later 14-degree and 20-degree heads. Piston is .025" below a 10.250" deck. Check small end of rod to piston before assembly / .045" clearance per side minimum.
Technical Specs: - Alloy: Hypereutectic 390 Alloy
- Bore: 4.150'
- Crankshaft Stroke: 3.750'
- Connecting Rod Length: 6.630'
- Deck Height: 10.250'
- Compression Height: 1.710'
- Pin Size: 0.980' x 3.000'
- Pin Location: Centered
- D-Cup Dish Top: -17.0cc 2 Valve Reliefs
- Intake Valve Relief: 0.248" Depth / 2.210" Diameter
- Exhaust Valve Relief: 0.248" Depth / 2.210" Diameter
- Top Landing Height: 0.300'
- Ring Grooves: 5/64' Top; 5/64' Middle; 3/16' Bottom
- Gram Weight: 557/163
- Compression Ratio: 9.6:1 w/71cc Combustion Chamber Heads; 8.4:1 w/87cc Combustion Chamber Heads; 7.8:1 w/96cc Combustion Chamber Heads; 7.1:1 w/111cc Combustion Chamber Heads
Part TypePiston
BrandUNITED ENGINE MACHINE
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part NumberSKB346.030
Package Qty1
Package TypeEA
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