Traded a 68 charger for this 426 motor. Don't no much about dodges, motor looks original , been in storage for 30 years. One head is k head # 2468016. 1964.  Other head is # 2780559. No cracks between valves or repaired , no ridge in cylinder walls. Block has been decked at one time but not under cut. The 2780559 head is usable on street motor , other looks like race head.  This is how I got motor. Don't no y one head is gone. Any reason u don't want this motor. U don't have to take it. Someone will. Been setting has drawled some moisture. May b able to b put together and ran like it is. If u can match up heads. I am 60 miles from St. Louis.