If you don't spray down your engine it will eventually look like a turd if it isn't cared for. The 78's weren't painted and I have seen several that look good but I have one in the basement that looks like it is growing moss. It's that bad.
If I were you and wanted to keep it the way it is I would still paint it. But I would use Duplicolor clear engine enamel. Then it at least has something on it. But their aluminum color looks really good too.
If I were you and wanted to keep it the way it is I would still paint it. But I would use Duplicolor clear engine enamel. Then it at least has something on it. But their aluminum color looks really good too.