I had an Indian motocycle with powder coated barrels. [Air cooled motor] This machine was also stroked, and I had no problems from the powder coating. Brian
No it was more like alum. color. I have had no issues with heat. And as far as staining goes, even the alum. cast head will stay stained from gas or oil. The only draw back is the bucks that it cost. Chet/Ma.