I wanted to also change my valve covers but I was told to keep my stock ones. Because it's the best fit. Is this true?

 

No, Ford racing and Trickflow make some preety kick *** valve covers.

 

+1

 

There are a lot of really nice valve covers that'll put your stock ones to shame and fit just as well and look better! Morosa, Edlebrock, Trickflow, Ford Racing... etc. Trickflows are only $120+shipping

 

You can buy lots of valve covers that fit just fine....

I've got the FRPP tall valve covers, but you'll have to run an intake spacer w/ any tall valve covers you get. Trickflows are priced pretty decently at Summit. If you get the part #, you might can find a better deal somewhere else, though.....

 

Most Valve Covers have a great fit. The ones that will hurt you are those cheap chrome ones. They are made very weakly and flex alot, and you're not going to get a good seal most of the time with those. Most any of the name brand ones that are not advertised as chrome will be fine.