Rebuilding the engine in the roadrunner. In the past I've always used rattle cans to paint engines (duplicolor, Mopar Performance, etc) but I've never been too impressed with how the paint looks like after a year or two, seems like it lifts with coolant leaks or stains easily with oil. I was considered painting this engine with enamel in the HPLV gun in the hopes that the paint would be more durable and look better longer. Am I wasting time and money or would I be much happier going this route?