Mopar has made several different C.I. motors that ended being made and used for heavy duty applications, 361-3, 413-3, 318-3, 360-3 and 440-3
I'm almost positive that they did not mark the blocks, heads water pumps, exhaust manifolds and intake with a marking on them saying they were -3 H.D. parts shruggy scope
I've seen all of those motors in bigger trucks, D500 and bigger cab over trucks and in class A and class C motor home chassis twocents

Last edited by Cab_Burge; 05/30/22 02:06 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)