Hot Rod Dad... If you use the ram horn style exhaust manifolds, they will clear the steering box. We are talkin 47-54 chevy truck, correct? I concure with labluver, buy and install the universal crossmembers, they are pretty easy to install and you can set the engine and trans where you want it. No need to cut the firewall. I would recommend you rebuild the front end. New king pins, bushings, shackles and brakes. You might want to install disc brakes for the front, just alittle stopping piece of mind.
Mike
