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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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#54479 01/04/2006 10:28 PM | Joined: Feb 2003 Posts: 218 Shop Shark | | Shop Shark Joined: Feb 2003 Posts: 218 | Getting ready to paint my exhaust manifold with high temp paint. It has been dipped and cleaned prior to it being milled with the intake attached.
Do I need to prime it before hi temp paint? For that matter, I really need to know the same about my intake. Intake will be with engine color paint. Exhaust with hi temp cast grey. | | |
#54480 01/04/2006 10:44 PM | Joined: Jun 2000 Posts: 2,773 'Bolter | | 'Bolter Joined: Jun 2000 Posts: 2,773 | I would use a high temp VHT paint, multiple coats without primer for the exhaust. Clean with lacquer thinner before painting. I would do the same with the intake, but would use one of the regular hi temp engine enamels. The VHT paints have a limited color selection, but are the best high temp paint available.
Fred
52 3600
69 C-10
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#54481 01/04/2006 11:15 PM | Joined: Mar 2005 Posts: 170 Member | | Member Joined: Mar 2005 Posts: 170 | If you sand blast the exhaust manifold first, paint will stick to it just fine. Primer gives the top coat paint some "tooth" to stick to. But sand blasting makes better "tooth". Also, most primers are not made for exhaust temps.
Steve | | |
#54482 01/05/2006 12:13 AM | Joined: Apr 2005 Posts: 345 Shop Shark | | Shop Shark Joined: Apr 2005 Posts: 345 | I just got my exhaust back from Mike Yoder-looked great. I believe he uses VHT. I put 500 degree paint (chevy orange) on the intake mani after having it blasted and the whole assembly came out nice. Just started it up yesterday-now I just need an exhaust, weatherstripping, glass, interior, body work and paint and I'll almost be done. | | |
#54483 01/05/2006 12:31 AM | | Anonymous Unregistered | | Anonymous Unregistered | I just finished my cast iron exhaust manifolds using the VHT factory Grey paint. I wire wheeled them, then gave them a quick blast with garnet media before painting them using multiple thin coats. The directions include a curing process of 30 minutes at 250 degrees, cool 30 minutes, 30 minutes at 400 degrees, cool again, and a final 30 minutes at 600 degrees.
Came out looking great and the wife was not ticked I used her oven. Put in new studs in after the paint process. | | |
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