Quote:
Originally Posted by 36tbird
OK, let me ask another dumb question. Aren't the exhaust valves the more critical as far as metallurgy? I mean, an intake valve gets cooled but an exhaust valve takes more abuse because of the exhaust gases, right? Therefore, why can't you use 1.5" Chevy exhaust valves for both intake and exhaust on a flathead and therefore have the same size valves as stock except for the longer stems. Please show me the error of my ways, oh learned ones.
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Yes use
exh in both holes.Just save money and spend on something else. 1.5" are the answer 1.6" needs machine work isn't worth the effort for the street.People do it and like to say they have 1.6" intakes whatever floats your boat.
R