Originally Posted by scotto-
And how about on the header pipe? A little different story there.......
I don't paint my pipes, I polish them and pipes aren't the engine.
As far cleaning the engines, use quality gasket materials, check the torque on your fasteners and the engine will stay clean with no need for aggresive cleaning materials.
Any excess chain lube or intake blow back will wipe off easily with an absorbent cloth.