First I want to thank everyone for their help. Today I moved the engine forward 2 1/2", I now have 1/2" between the rad and fan. With the eng moved forward the stock drive shaft is the correct length, just need to get a 27 spline yoke to go into the 700R4 trans.Just a side note, I have a 55 2door that I put a SB in 25 yrs ago and there is over 2" clearance and no shroud, never had a heat problem.
Do the tube mounts need to be welded where the tube goes into the side bracket's so there is no chance of the tube turning in the brackets??