Originally Posted by firstname.lastname@example.org
I learned the hard way,
thats why my intake manifold is now painted black with another new set of valve covers and I had my painter clear coat them. Well to be honest thats not the primary reason why I needed to change the valve covers a second time, but my first set did start to oxidize from just a few trips out, had to sand them lightly then clear coat.
Mine Intake still looks pretty good, but I really have to stay on top of it. At least when I do my valve covers I will know to clear them.