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MG MGA - header and exhaust finish

What sort of finish have y'all put on a header? Is there a heat resistant powder coating? How have y'all painted the exhaust? How were they done from the factory?

Safety fast!

JMG
John Greenlee

John, if you are talking about the cast iron exhaust manifold most people sand blast and paint them with high temp paint, powder won't handle the heat. If you have a tubular header the best I have seen is to have it Jet Coated, I would imagine that it could be done to a stock manifold. You can find them on the web under Jetcoat.com
John H

John,
This is what I used on mine. http://72.10.43.141/high_temp.htm
I baked it in an old gas grill. So far it has held up fine. I used the flat aluminum color, but they do have a color that supposedly resembles new cast iron.

I think there are high temp powder coatings now, and there are other outfits that will do a real ceramic coating. I have no experience with either.

I don't believe there was any finish applied to the cast iron manifold at the factory.

Jeff

Jeff Schultz

I had the exhaust manifold powder coated with a ceramic compound that is later buffed to a shine. The product is called "Cermakrome". It was applied locally by RLD Industries in Ottawa. They are on the web and you can probably find a similar product closer to your place.

I have been very happy with the performance. It is rated for some 1500 degrees and after 3 years and more than 10000 miles, it has yet to change color or for any rust to come back.

As far as the intake is concerned, I cleaned it up and painted it "aluminium" color with heat resistant paint.

Karl
Karl Leclerc

John,
Which header system did you end up with?

j
JohnB

John

The factory left the exhaust manifolds unpainted.

Steve
Steve Gyles

Jet-Hot coatings isn't that far from you (relatively speaking) in Pascagoula. My header is there right now getting a soaking in their cast iron grey colored stuff. Its guaranteed for 6 years with a free recoat if it discolors or rusts, with a lifetime guarantee from rust-through or they will repair it! How can you beat that, especially if you plan to keep your car for 30+ years!
Jeff Schlemmer

Steve is correct, factory manifolds were bare cast iron. That's why they turn such a lovely shade of "rust". I sandblasted mine and painted it with Eastwood's grey "Cast Iron" manifold paint. Looks great, seems to be holding up fine. Didn't cost a fortune.

GTF
G T Foster

JohnB

I ordered the Maniflow smaller bore header and exhaust system.

Jeff,

The link you posted looks interesting. Thanks for all the help!

Safety fast!

JMG
John Greenlee

This thread was discussed between 20/03/2006 and 21/03/2006

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