My TR7V cast iron barrels were blasted back to bare metal and then painted with 2 coats of Granville Cylinder Black - billed as high temperature paint for exhausts and engine cases. http://www.granvilleoil.com/product_info.php?prod_id=252
Less than 500 miles, and our poxy English winter weather and salted roads, and they're all orange at the front.
A miserable failure that turned out to be.
Last year I used Carplan black engine lacquer - which flaked off very quickly.
I'm sure I used to buy Hermetite engine laquer, and that stayed on. Unobtainable now.
What does everyone else use these days? Help!