[Ironhorse]

Originally Posted by Bimus

I removed a 235 motor from a 54 Chevrolet pickup with the same valve cover and I was told the center vented cap was how 54's came new.
The 235 valve covers I have that have the non vented cap in the front all have 4 slits cut in the top of the cover .

Thanks for your reply also. Never have had much experience with 6 cylinder engines, a lot to learn about the many different engine sizes over the years.