I have a set of after market aluminum valve covers. I bought these for my 65 that I have since sold. I’m been trying to find out who made them and when. They have fins that wrap around the ends unlike the M/T version. If anyone can shed some light it would be appreciated.

 

What does the inside look like?

 

No casting marks that would identify them. Looks like someone removed some material so they could use roller rockers. Also they modified them so the breathers would be functional.

 

They look like Offenhauser. Maybe an earlier version. Looks like they welded the breather hole, maybe they filled in the nameplate too?
https://www.summitracing.com/parts/o...AaAiU8EALw_wcB

 

Thank you for the feedback. Summit is proud of them.

 

Pardon me for being foolish maybe, but don't they say offenhouser on them?

 

The breathers say Offenhauser, looks like the valve cover was machined flat to add the breathers.
They are Offenhauser valve covers though(ive had several pairs, polished and rough cast)