Is there any reason you can't have the outside of cylinder heads and intake cermatic coated?? I was going to have the heads coated so they don't flake off. And I thaught a coated intake would look good. Thanks
I've seen people coat intakes, but i never understood why. The ceramic coating holds heat in. The last place you want to hold in the heat is the intake and cylinder head. Engine paint always burns off, but it doens't hold the heat nearly as much as the ceramic. Save your bucks and get some aluminum heads, thats the hot ticket!!
I thought that ceramic coatings helped metal 'reflect' heat. Sure, it helps the combustion chamber hold heat in, but the combustion chamber is the source of the heat, so it's just holding in what was already there. In the case of the intake, the heat is coming from all around it, (except for the coolant passage, and you could have that coated too). So if you have the inside of the coolant passge, the head flanges and the bottom coated, then you're stopping heat at the source(s): the coolant, the heads and the block. Again, the intake itself doesn't make any heat to hold in. I agree that coating the top of the intake would probably hold heat in, but other than that I can't see it hurting.
