head swap or stroker... what's the big difference!?
Okay, maybe I'm being a numbskull and totally overlooking something. But, is there really that much of a difference between putting the 4.0 head on a 258 and putting the 258 crank and rods into a 4.0? I realize the 4.0 has a slightly larger bore so you'd end up with a few more cubes going the stroker route. Other than that though, both setups will give you the longer stroke of the 258 combined with the better flow of the 4.0 top end. So, if someone could fill me in on what I'm missing my curiosity would really appreciate it..