From what little I know about diesels - they'd have more of a mexican hat shape in the dome - and typically have a flat cylinder head surface with "vertical valves" on the same axis as the piston centerline of motion......
I'm going to guess flathead - long skirt, no valve reliefs, flat or slightly domed top..... flat head, Ford, maybe, continental?
I'm going to guess flathead - long skirt, no valve reliefs, flat or slightly domed top..... flat head, Ford, maybe, continental?
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