Yeah no i deff dont want another 0331 head i wanted to get a head off like an early 90s cherokee but i wanted to make sure it will just bolt right on i assumed there isnt anything different and arent the 4.0 engines in the grand cherokees the same Also so i mean wont any 4.0 head bolt right on ill just have to fab something up to hold my coil rail if its off an older distributor jeep