Greetings, I happen to come across a pair of heads that have already been serviced. I initially thought they were Ford heads but the casting numbers are not even close to Ford's. They have 12NW34 cast in them and after some googley searching, I now suspect that they are International heads but I could not find a ton of information. Can anyone confirm? Shouldn't they be interchangeable with the 6.0? Was there a change in dowel size? I can pick the pair up for $50 for future project where I'll be fabbing a 6L into a 81 half ton Ford flareside.

 

Interesting. Comes up as an IH Maxxforce cylinder head that looks like a 6.0 head...

INTERNATIONAL MAXX FORCE 7 (Stock #9851)

 

6.4L Powerstroke / 6.5L International

 

Thanks for the responses and clarification! I might still pick them up at that price. The wife never has liked my "you never know" approach.