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Are you guys using shops that use large sanding belts, threading a few holes for a fixture and a using a surface planer or an old school flat table resurfacer?
I've never done any of that. I just put my favorite RTV on the flange - very sparingly! - and assemble them. I do get the manifolds blasted clean first, and the cylinder head gasket surfaces on FE's are masked. On small blocks or big blocks you need to make sure there is no oil on any of the exhaust manifold surfaces. I have used clear basin tub and tile RTV one night when I had to drive to work the next day because we didn't have anything else and it was 10 PM. It worked well for many years afterwards. Best practice would be lithium grease like the shop manual recommends.Quote from: Bossbill on February 17, 2022, 03:16:54 PMAre you guys using shops that use large sanding belts, threading a few holes for a fixture and a using a surface planer or an old school flat table resurfacer?