O U 340 Head help

[ohio cuda]

I'm building my TA engine and found a guy with a seat of heads. I'll include some pictures as he has a set of U 3418915 heads with the offset push rod holes which are correct. He also has an "O" code 3418915 head with offset Push rod holes new never used. The O head has water or oil passages missing though when I looked at them what gives?

[ohio cuda]

Here is the U code. Production dates are U 1/12/69 the O is 12/03/69

[Chryco Psycho]

Either head will owrk fine , all that is missing a 2 small steam holes on the O head

[cuda]

I also have 0 heads on my 340. I have not seen to many around with the 0 heads. I dont have any problems with them, they seem to be fine. 

[ohio cuda]

Ya this is a first for me with O heads. I didn't know they made them.

[Alaskan_TA]

Some T/A cars are known with one head letter on one side and a different head letter on the other. 

Barry