A 1974 Duster - My 2nd one, 41 years later!

Alex...if possible, you might try positioning the motor to the pass side, bolting up the drivers side header....then re-positioning the motor on the mounts back towards the drivers side on the mounts.
Denny, I appreciate the help and input, but....The K member has Schmacher slant 6 to 360 conversion mounts. They are spool type mounts sooooo.....there is no moving the engine up or to the side. It has to line up with the 9/16 hole on either side and it only goes in when it lines up with the K member mount holes. With the header bolted on as it goes down the header runs into the PS gear, making it impossible to get the motor mount bolts in. Remove the PS gear and everything bolts up...but then you can't get the PS gear back in. Dimple needed.