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Quick question, while I have the intake and exhaust manifolds off the engine, thought I might re paint the intake manifold. I painted it around thirty years ago and still is holding up for the most part. Thinking a new coat will look better, looks like I painted it a gloss or semi gloss black, what is the correct black to repaint it? And is a high heat necessary for the intake. In past years tried to paint the exhaust manifold with a couple, at the time, ultra super exhaust manifold paints, all of which lasted around two weeks, and yes that was even with sandblasting the manifold first. Will probably leave it bare metal unless someone has some suggestions? Thank you.

I was under the impression that the manifolds were left raw from the factory and if that also applies to 1940 senior models, there is a great high-temperature natural cast iron paint. Hirsch and others carry it.

I used this on the Jackard exhaust manifolds that regularly get up to and over 500f.

It says flat back, but it looks more grey to me, almost like natural cast when sprayed.




Here you can see the results, and it still looks like this after many heat and driving cycles:

Thanks for the responses so far. Might try the ceramic coating on exhaust?

Did you use any kind of primer? I don't have access to a large sandblaster this time around, so any special prep you might have done?

No, I used a wire wheel to remove the rust and crud first.

with Kev, used "manifold paint", back in 2009 when the engine of my'41 120 was rebuilt. This is how it looked in 2017 after about 20,000 miles, still pretty good?

Thank you Kev. Just got a can today of the Krylon, states the manifold needs to be baked three times and slowly cooled three times if off the car? If you baked your manifolds looks like I will need to get access to a restaurant pizza oven that will be large enough for several hours? Any suggestions? Thanks

Which manifold paint did you use?

Heating the motor up with bake it!