I am rebuilding a 261 cid engine for my 1950 AD truck. I have been unable to locate the minimum head thickness specification (distance from the valve cover surface to the head surface) for my head. The head casting number is 3836850. My head has been milled, however I do not know how much. If the minimum head thickness value is not available, how much resurfacing is too much? How do I tell how much my existing head has been milled?
Thanks for your assistance, Bill.
