I would like to see if anyone has some original advertisements or pictures of Roof 8 valve heads. There’s a lot of info about the 16 valves, but not the 8 valves. I do know there are a couple different versions, I believe the earlier 8 valve was called the Liberty 8. I have a later version which is a bit different. Any pics and info would be great! Thanks!
Alex sent you a pm.
Alex, The only thing I know is they run like a scaulded dog!
This is the exact 8 valve I have:
Water pump and oil pump in one, cool!
I have an 8-valve Roof head, dual intake ports. On mine, the combustion chamber is 1-1/8" deep (from the deck). I have seen another on which the combustion chamber was quite a bit deeper, maybe 1-1/4" or 1-5/16", which would make it lower compression. I am not in the know about whether Roof produced different versions of their 8-valve, dual intake head.