I decided I wanted to find out more about the 3895056 casting. I went back out to the garage and mounted the head in the vice where I could CC it and measure the valves with some different instruments. Here's what I found...
The combustion chamber volume is right at 60.3cc (best I could get with my setup and a spark plug in the hole.
Intake Valve is: 1.72"
Exhaust Valve is: 1.5"
I have no idea of year range, but the engine it came off of and the date code of the head are definitely 1967. So at least that could be a starting point.
Beyond CC volume and valve size are there any other differences/characteristics I should look for that might make it more or less desirable for use with the 292?
The 3895054 casting intrigues me. I may end up trying to measure that one out at some point also. We will see...
