Engine & Tranny Installation-Dougs Headers, Poly Lock Mounts, Nothing Fits!
We (3 of us) put the headers in without the trans. That was Troy's suggustion and he's sold more TTI headers than about anyone when he was with Westoaks MP. It just gives you more freedom. My TTI's went in pretty straightforward.
And my Milodon road race pan and 73-76 spool K-member did not give me a lot of room to move the motor around with. With spool mounts, once get into the spool cradle area you can only go up and down. No twisting of the motor. And that's over an inch until you get to motor resting height.
One trick is to make the header studs only as long at they need to be and cut off only a couple thread past the nut. That gives you room to slip them in by. In the last picture the 2nd to last driver side header bolt is not tightened yet.