Reply to "Build Your Own 91 octane, 500 HP, 377CID CLEVELAND?"

4nhotrodHe who dies with the most toys is dead

quote:
I'm amazed at what the heads flow,

"pulled off another post"
351C-4V
lift int exh int int
#1 #1 #2 #3
.050 33.6 27.1 32.7 31.1
.100 64.7 55.9 64.6 64.1
.200 123.0 100.1 129.8 134.5
.300 188.5 138.9 195.1 200.2
.400 246.4 166.4 251.7 253.3
.500 294.5 182.7 296.5 294.6
.600 322.1 186.5 322.5 322.0
.700 333.3 185.2 338.9 330.2

Those heads received some work to them. Cleveland heads are known for poor exhaust numbers. It doesn't matter if you have good intake numbers, if the exhaust is going to hold it back. They are a good head for high rpm numbers. If you're going to spend money on port work ($60-$80/hr), then you're better off to go with an alloy head.
Will

8/16/084:08 AM

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