[72projectbird]

Originally Posted by misterp266

^ ^ ^ ^. THIS is why I suggested a front frame swap. Yes, with enough work, you can put just about any motor in any car but why make it difficult? Have the place that’s tubbing the back swap the front at the same time and square it all up. Otherwise, unless you talk to someone who has actually done it, it’ll for sure be more hassle that you think. Just my 2 cents.

Admittedly I haven't put a big block Chevy in a 66 Star Chief, but I have put engines in vehicles that never were intended on being installed and have run into the same issue OP is dealing with. Taking flat plate steel and welding two rectangular pads onto the factory crossmember to give the new engine mounts something to bolt to isn't that difficult. It's far less involved than front halfing the frame.