I have adapted a Offenhauser flathead V8 combustion chamber shape. Yes it requires special pistons. I have yet to install the spark plug
Nice Cast iron?
What type of pistons do you have in mind? Custom made or would 292 Y-block Ford work?
Looks great. Can't wait for it to be finished and tried...
Ross custom made pistons. They have a dome the same as late model Ford flathead V8 (6" radius dome). I am trying for a piston to head clearance of .030" to .060" at TDC. The head is cast iron.
Potentially 292 could work, of course without the domed machining (which would have made it all easier).
Do those heads have the same bolt pattern?
No they don't. Please re read my first posting
If you can achieve your target piston to head clearance of .030" to .060", what's the compression ration going to end up being?
Inquiring minds want to know!
My thoughts have been to drill for modern plugs so you have the heat range to choose from.
I have not measured chamber volume. Probably about 8:1. The evidence is that much higher and you should consider opening up in the flow corner down into the cylinder as you will be pinching off too much and hurting the overall performance. Still lots to learn on this project.
I agree. I need to check the choices in 14 mm and 10 mm thread size