What year is the other engine? If it's 96 or newer you can not use it w/o pulling the heads also.
You'll be much better off to keep looking for the correct engine. They also came in Astros and full size 1500 trucks and vans from 88 on. Anything with a vin code Z.
You'll be much better off to keep looking for the correct engine. They also came in Astros and full size 1500 trucks and vans from 88 on. Anything with a vin code Z.