Intake port size s/b the same as the 57 heads, which I'm assume he has since the question was on a 57, as the B intake came on a 57. All 57 engines used the G heads regardless of size.
Quote:
Originally Posted by Flatmotors
The intake port size is different so you won’t gain the port size, and be careful with your gaskets as well. The only advantage would be 4 barrel capability.
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