Inside A 440-Cubed 400 Part II
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7. Combustion chambers are Pontiac's open design. For this application, the heads were milled .030 to reduce the chamber size from 72ccs to 66ccs. Taylor related that no other work is needed in the chamber. Nunzi one-piece stainless steel 2.11/1.77 valves are installed. The intake valve job features no top cut, a 30° seat, and 65° bottom cut. Exhaust is stock at 45°. View Related Article
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