I thought all head sides on the 13 slant 6 exhaust/intake studs were 5/16 - 18. I've got a head off a 1970 Slant 6, the back top hole in the head is defintely larger than 5/16. Is it possible it came 3/8 or is this just someone elses mess up. I did not comfirm yet, but Im thinking its 3/8-24.
No big deal, just wanting to confirm.
No big deal, just wanting to confirm.
