Engine paint or sealant

[Belliott3]

I've stripped all the old paint off my open valve engine and have it down to the metal. It has an aged metal look now, which I kind of like, but I'm undecided if I should prime and paint it or leave it unpainted. If I decide to paint, what paint should I use that will adhere to the engine; but if I decide to leave it unpainted, is there a sealer of some sort to apply to prevent rusting or do I just rub oil on it for that purpose?

[Rich Eagle]

If you like the cast look this is offered:
https://www.modeltford.com/item/PAINT-CI.aspx

[Steve Jelf]

I would avoid primer. If you want the bare metal look there's clear Rustoleum, or a clear hi-temp manifold paint, or the cast iron paint Rich posted. If you want black, which is what Ford used at least some years before 1926, satin black Rustoleum is good. I find glossy paint on an engine very unattractive. Leaving it bare will lead to rust unless you obsess over keeping it oiled.

[Belliott3]

Thanks, fellas, I do appreciate the input! I will indeed look into that cast iron paint from Langs; I really do like that look on an engine. And Steve, I fully agree about the shiny paint on a T engine; looks out of place in my opinion - satin or flat is much more appropriate.

[Steve Jelf]

This factory photo from the mid-twenties seems to show the famous "Gilsonite wash" dripped down the side of the engine. Looks like they missed a spot on the valve cover.