223 valve cover question.....

I have an early model 223 valve cover that I'd like to run on my later model 223. The later one bolts on around the perimeter, where the old style has 2 cap nuts on the top. Can I change out the rocker towers and put the cap nut type on the newer engine? It seems to fit o.k. Wadaya think?

 

I did it with mine---early Fenton cover on a 62 engine(thanks Fiddy for the early rocker shaft parts)

 

It seals ok over the holes in the head?

 

RTV is a miracle product.....
Seriously, I dunno if it leaks or not. Hasn't been run more than a minute or so.

 

Yep... it'll seal fine... like the man said, RTV is yur buddy