What to do??? Any suggestions???
Here's what I did, not something you want to try if you want to turn them around quick:
I soaked both my manifolds in cheap white vinegar --- REALLY! I got me one of those "store-your-christmas-crap" plastic containers, poured about two gallons of vinegar into it and threw in the manifolds one at a time (the container wasn't big enough to hold two). It wasn't so much to make them pretty. It was to free up that darn heat riser which was rusted shut. Every week I'd wire brush them and every two weeks I replaced the vinegar with fresh stuff (bulk vinegar is cheap). By week six the heat riser freed up and the manifolds looked great!
I then purchased Hirsch Hi-temp paint, good up to 1600 degrees, got a good reputation amongst auto restorers.
http://www.hirschauto.com/prodinfo.asp?number=EMPT-SPRAY
If you want to do it faster, best thing is to have a machine shop sand blast them clean, then paint them.
Here's what I did, not something you want to try if you want to turn them around quick:
I soaked both my manifolds in cheap white vinegar --- REALLY! I got me one of those "store-your-christmas-crap" plastic containers, poured about two gallons of vinegar into it and threw in the manifolds one at a time (the container wasn't big enough to hold two). It wasn't so much to make them pretty. It was to free up that darn heat riser which was rusted shut. Every week I'd wire brush them and every two weeks I replaced the vinegar with fresh stuff (bulk vinegar is cheap). By week six the heat riser freed up and the manifolds looked great!
I then purchased Hirsch Hi-temp paint, good up to 1600 degrees, got a good reputation amongst auto restorers.
http://www.hirschauto.com/prodinfo.asp?number=EMPT-SPRAY
If you want to do it faster, best thing is to have a machine shop sand blast them clean, then paint them.