Here are the "E7" heads I am selling. Sorry I thought I had the rocker arms and push tubes for these heads, lost them in the move but I may have some other set of rockers soon.
I never clean or paint the parts, thats how people hide or cheat you out of your money....this is exactly what you are buying...dirty...oil..and even some gasket material !

Here is a good one to zoom in on the casting marks and numbers.

Sorry not very clear pic's...keep looking..and zoom in.

NOTE: This pic. has an arrow pointing at the REBUILD tag on the frost plug.

Here is the crank from the same 351w Interceptor motor as the heads.
Please, PM me if you need more info or a different picture.