07 4.2L is there an updated valve cover. found a tsb
 

I found a TSB that says the PCV was a poor design for the valve cover and was letting too much oil to go to the intake and it causes spark knocking along with other things.


My question is where can you get the updated valve cover, is it a ford only product?

Also I found this page here... but I am unsure it will help but it states it is for spark knocking among other thinks.

https://sites.google.com/site/fordf1...P0171P0174-Fix