It should work fine. The valve covers don't get THAT hot.

I would just take some brake cleaner and spray em off real good, maybe do some sanding along the top to give it a smoother finish, and paint them with some good paint. Then maybe throw a coat of clear on it if you want, and slap em back on.

In my experience, the engine bay on any daily driven truck is going to get dirty relatively quick, and would be hard to keep them super clean anyways, so why bother with insignificant details, especially since the coils are going to be on top anyways.


Oh and be sure to remove the bolts and grommets from the covers before you paint it haha.

 

See...

 

Here's what I did

clean with brake cleaner
2coats of 500* primer
2coats filler primer(just to get really smooth)
2coats of whatever color you choose
2 heavy coats of 500* clear
I painted my valve covers, fuel rails, coil brackets, coils, front cover and intake manifold all the same way. On the plastic parts(intake and coils) I used and adhesion promoter before the first coat of primer
they have been like this for close to 6months now as a daily driver and still look great

 

For wipping them up with some paint. I use Brake Caliper paint (spray) with perfect results. I just clean(prep to ones desire), spritz, heat gun for abit, and let dry overnight.

The CF ones are sweet if money is not an object.

 

thats with high temp can paint? Cuz that looks very good...

 

Reg paint is fine. Hell I used cheap 89 cent a can paint, it held up great untill I used 3m engine cleaner on them, then it flaked them up... Clean them, sand them or scotch bright them, paint..

 

It's regular automotive duplicolor paint, 500* primer, rustoleum filler primer, and 500* clear. I have sprayed engine degreaser, gas, simplegreen and oil on these parts and they still look great. You can go cheap if you want and end up like John did.

 

Im using bondo, filler primer, 500 degree black, and 500 degree clear.

 

idk if i would use bondo under my hood on something that's near something running that hot...living in florida i've seen what just the sun does to bondo...and that's not direct constant heat....

 

I think i found something to do this weekend...