The engine in my truck was orange ,but most say should be grey .I had a parts truck that also had some remnants of orange also it was a 51.I decided to change to grey and I am halfway there .I had my manifolds off so I used graphite in a aresol for the exhaust and grey for the intake.the grey I used being from Canada I used court grey armour coat from Canadian tire .We will see how it holds up .Kevin
