Thanks for the ideas.I am hoping to keep the old sm420 trans. I located the v8 bellhousing with a clutch and fly wheel. Looked at the motor today and it appears to be a 69 350 . the front is drilled for the mounts.The cab is at the body shop so I will have room to set this up without space issues. I liked the hei because there was one in the leftover parts locker. But the body guy has done a nice job on the firewall that a BFH mod is out of the question. Scrounged some rams horn headers .