Duke
Donation Time
How long will the coating last for?
Should last for years and help keep temps down in the engine compartment.
thats why I was suggesting the blue ceramic.. you would have a stock look and the proyection.. to me it looks like you are building a stock looking motor
My thinking is that the paint that was on the manifolds was quickly burnt off and the "natural" color of the manifold was left which is grey. Only the factory brand new engine should have any manifold paint on them.