1940 EL cam cover

[YubaG]

I am looking for a one year only 1940 EL cam cover. It has the eight fins on it but it doesnt have the visible oil passage and circle shape under the fins.

[YubaG]

Found!

I have one now, it wasnt drilled for the oiler line. Does anyone know why? Does this indicate that it is not oem? Thanks.

[koanes]

The same casting was used briefly in the early pan era, 51-52, so the feed hole for the line directly to the rocker boxes was not machined.