The CJ-5 I bought last year had been modified to accept a GM 350. I really liked the way they put together the engine mounts, so I chose to reuse the mounts and then modified my frame to accept the mounts.

To make the mounts, I took the standard buick v6 mounts and removed the rubber blocks, leaving only the steel.  Then, I cut and welded some 3×3 square tubing to the mounts.  

To make the holders that are welded to the frame, I used some recycled angle iron and added side braces to create the triangular look.  I look this setup much better than what I did in my first jeep.