After tearing down my engine for rebuild I found out that the head I have my not be correct. The casting number is 302137 (the first 3 may be a 5) The number stamped on it is 510084. The original block for the car is TS15252-E. It is a an early car with the high port head. I know there is no problem with matching the head with the block, but the intake ports on the manifold are 1 1/2" were the head is 1 5/8". The car was run for some time with this miss matched set without any problems that I can find. The intake that I have is the early high port log type with out the boss on the crossover tube (302119). I was thinking of matching the ports on the manifold to match the head but I'm concerned about how much material would be left on the outside. Also all the intake gaskets seem to be the same for the TR3 thru TR4A. Would you also cut out the gasket to match the ports? I don't have the gasket set yet to see what size holes they have. Any ideas.