need help determining what head casting

[71swing]

Can anyone help determine what set of heads these are? They came off of my 71 dart that had a 340 in it. The motor is not original to the car. The block is an 11*24*68 casting date.

Here is the casting number on the head. On the block mating surface side has a 2531894-C

Any help I can get is greatly appreciated.

Here is a pic:

 

[340mopar]

They are "X" heads, you can see the X next to the end spark plug.


Chuck

 

[ValiantMike]

2531894 1968-1971 340 X-heads 2.02" 1.60"

 

[71swing]

Thanks guys :thumbup: