its an old straight 6 in a 54 f100.truck started out as a 215 i think was the 6 for that year.motor has been swapped(truck been in family for 40 yrs) and it supplosely has an industrial engine.manifolds are on driver side and from pics it appears to be another 215.the casting numbers are EAA-6015-G.were trying to figure out what it is so we can get a distributor and try to fire it.