Quote:
Originally Posted by scott70
Does the exhaust flow look high for this particular head? Also just noticed 45 degree angle.
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In stock form 64s have closer to a 146 cc intake port instead of a 153cc same era big valve heads. Would be interesting to know what port volume your 64s have with the 45* valves. There should be more volume taken out of the bowl than a 30* intake. The exhaust ports on a 64 should be the same as the other heads and capable of similar flow numbers to the other heads that had 1.77s. Your exhuast flow numbers look pretty typical after receiving his CNC work. I think SDP had a very nice CNC program for iron D ports with 45* valves.