[Sizzler]

There was just a discussion on another forum about polishing aluminum.

It seems that it has been the experience of some that polishing a component reduces its ability to radiate heat. They were talking intake manifolds, and it was seeming like engines with polished intakes were running a lot hotter than before the polishing, without any other changes. Polishing seemingly removes alot of surface area from a part.

Just thinking here, but would a polished aluminum water pump be a good idea? The very part where you want heat to radiate away from. A polished timing cover might not matter so much.

Anyone have any practical experience, experimental results, polished vs unpolished?