My 1966 Ford F250 engine blew the engine. It's being recommended to change over to a 390 long block. My question is are these two engines fully compatible? In other words, can all my parts go from one to the other without major/expensive work around because the parts on the old engine are mostly new (example: same manifold, headers, fly wheel, carburater etc.)? Are the motor mounts the same?
If the original engine was a 352 then the main difference should be bore and stroke: https://www.ford-trucks.com/forums/918071-differnce-between-352-and-390-a.html
Good idea to have thorough checklist of everything you plan on using from your old engine: Shot block vs Long block Might be worth looking at a crate engine since your considering a long block
