Hmm... Ive heard its a pain in the ass to go from 2v to 4v heads. That and these heads are pretty much a drop in replacement. Works with factory shortblock and everything. You know what they say though, you have to pay for convenience.

Although, now that you guys have mentioned those heads that doesnt sound like a bad deal either going from 2v to 4v heads. Thats something I might be interested in if I ever get the money to rebuild my engine.