i have not done engine pieces yet but have seen numerous job with standard powder. check in the album and see if there are pics. i have also been told by others here that they have used standard powder on harley jugs and heads. i would think that they would run hotter than auto engines due to air cooling not liquid. hope this helps. wayne and bob will probable help best on this one.
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when in doubt polish it out/ why replace it when you can refinish it
G2 Polishing and Powdercoating
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