351w

If Rock Auto's part #s can be trusted the timing covers are the same for 302s and 351s. Just a quick check. Valve covers should be the same. Different water pump shaft lengths per model of auto. I don't recall if the alternator brackets were water pump/timing cover mounted.
Yeah my research says oil pans a no go as well. There's a lot of parts for them on the list within 50 miles of me or less. I should be able to find the right stuff, hopefully I don't have to worry about generations of them being different interchangeably. As my block is a '71 and I know they made them at least until '90 does an intake or exhaust manifold or headers work from any year to the next? I'm going to have to do some serious research to build it right. I'm not opposed to a mild build set up if it goes in the ranger. Maybe a bit more if it ends up in the mustang.