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Originally Posted by krisr
The only advantage I can think of painting an engine black is it helps hide the oil leaks 
Other than that, I'd seriously doubt it will give you a HP boost or cooling advantage. |
I like flat black, it hides those ugly oil smudges that gather dust but if you have a leak it will show up shiney.
This thread reminds me of a practical joke played with one of my buddies. I was helping to assemble his race engine and the guy wanted Chevy orange. Between about 4 of us in cohoots, we convinced him he would be giving up 10hp by not going black.
And No, the black HP isn't there if it is put over some other color