Weren't there a # of 12 port heads made, back in the day, for the 235/261 engines. Both the 15 and 18 bolt versions.
It is just a matter of finding one. Tom
Tom -
You are correct. There were a number of 12-Port Wayne Chevy heads produced. However, the majority of those were the 15 bolt version. The 18 bolt head was originally produced in 1957. I don't know how many were done, but I would assume there were not very many.
I have heard the 15 bolt version can be adapted to the newer engines, but I have never personally seen it done.
Bob
