curts56
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I plan on using a gasket between the flange and manifold, so that should help the dissimilar metal issue. I'll be making some clips like you. I'm going to mill off the heat riser "block" off the bottom of the intake manifold and install a plate over the exhaust manifold's side of the heat riser. So there will be no physical connection between the two manifolds.
The HD exhaust manifold is new from Stevens, but they have an issue with the heater riser mating surface being slightly off which causes a misalignment with the exhaust ports if you bolt it to the intake.
https://fordsix.com/viewtopic.php?f=2&t=73716
The HD exhaust manifold is new from Stevens, but they have an issue with the heater riser mating surface being slightly off which causes a misalignment with the exhaust ports if you bolt it to the intake.
https://fordsix.com/viewtopic.php?f=2&t=73716