ported/polished/coated manifolds 3Q's in 1

[RoughSilver92]

OIC. Who did your ceramic? I am seriously thinking about sending my exhaust manifolds out, and pondering the intake(probably to Swain). From the info I have gathered, It seems the general school of thought is to put thermal block on the gasket surface of the intake (and on the bottom of the intake on v8's where engine oil is slashing around down there), and to use a heat radiating coating(Swain calls it BBE) on the top, to help disperse the heat better. On the inside, Swain offers either a "flow coating" or the thermal block. I think the flow coating would probably be better suited for a carbureted car, since they talk about how it enhances the fuel atomization.

In other words, I don't know which way to go with the intake. At the moment, I'm leaning towards thermal block on the gasket surfaces and on the inside, and probably leaving the outside uncoated, since aluminum is a fairly good conductor of heat, I don't see how it would benefit me to coat the outside with a heat radiating coating. On the other hand, aluminum is a fairly good conductor of heat, so that engine bay heat will be trying to get in.

I am sold on the White Lightening coating on the exhaust manifolds, though. And given the design of the stock units, it should be possible to have both the inside and the outside of the manifolds coated.