['68OrangeSunshine]

A buddy of mine used to have a '71 Poncho 400 stuffed into the engine bay of his Squarebody '76 C/10 Stepside. He relocated his oil filter[s] to the passengerside fenderskirt. He did that for 2 reasons -- convenience of changing filters, and also extra oil cooling in the longer oil lines coming from under the block. [This is in Tucson, and Summer temps get extreme.]
About the motor mounts, he said to keep the Pontiac mounts on, only to replace the rubber mount parts. Since he already had a 73/87 his motor frame mounts worked.[''Within an inch'']
He had to relocate the trans X-member. He went from a 3-on-the-tree Saginaw manual to a TH 400 automatic. He added the x-member from the donor Pontiac.
He liked it a lot.
That was nearly 30 years ago, and not my truck, so no pix. He drives a Dodge van now.