I’m in the start of rebuilding my 64 273 , i have 2 questions is i have 318 heads available with a 4 barrel intake from a 67 barracuda
I did not get any numbers off the heads yet but is it worth doing ? and will it increase HP at all ?
Any advice will be helpful
The way I understand, the combustion chambers are bigger in volume so compression will take a hit. Might be just as well off installing a bit bigger valves and doing some porting to unshroud them.