[WSSix]

If that's the case, then yes, go LS. have you considered getting an older pullout and having it rebuilt? You could go iron 6.0 and easily make more power than the crate LS3 with heads, cam, intake, and exhaust. Or, go LS2 and do the same thing. You can also stroke a 6.0 and bury the LS3. Those options will all be cheaper than the LS3 crate motor. Most of the factory parts in an LS engine can be reused and handle loads of power. So no need to buy a crank or rods for instance. No reason to use an aftermarket intake or aftermarket heads. Factory or factory modified works so very well.