Is it possible to put the 4 valve heads on the 2 valve gt block? The bolt patterns are the same right? if it is, what other mods would I have to do to get it working properly?
oh they will go right on there is no question about that, but you are going to need timing chains, cover, intake, assorted plumbing and all that jazz at least. you are better off porting out your 2 valves unless you get a crazy deal on the set up.
the swap can be done, it just takes time and money, too much in my opinion