Putting 03 valve covers on an 04

[Vanilla Mustang]

I sent out a set of valve covers to get powder coated, they were off an 03 and marked 03 underneath. I noticed that the one I just took off the car has 04 marked on it.

Does anyone think this will be an issue?

Also, there were some small hairline cracks on the underside of the 03 covers..small and short stuff, worst around the filler cap. Anyone else notice this? Noting that shows topside, even after paint was stripped.

 

[Bdubbs]

As far as I know the valve covers should be exactly the same. Not sure about the cracks though.

 

[BLU3VN0M]

They're the same, it doesnt matter. As far as the cracks as long as oil is not seeping from the top side of the valve cover I wouldn't worry about it.

 

[Cobra03SC]

Those cracks are normal unless they were huge. Ive pulled DOHC covers off navigators cobras and marauders and have seen spiderweb cracks in just about all of them but never have had a issue with one leaking out of them. Ive also noticed them on a few timing covers.

 

[raym5_0]

those little cracks are just stress fractures, I see them on most aluminum valve covers.

 

[Vanilla Mustang]

cool, thanks for the input. Im stoked to get the new covers on Saturday. They were powder coated 'Cosmic Black', which is a gloss black with metal flake...

I'll be posting some of my findings in the How-to thread, just a couple things that I found make it easier while pulling the driver side apart.