So I sent the pipes out to be ceramic coated. The inside and outside were cermanic coated. The coater said don't clean them hot or it will thermal shock them and the stuff will come off. Also clean them with brake cleaner.
Put the front pipe on. Hang the rear support and come up to the exhaust port.
There are other ways to get a good seal, but the gasket and high temp black silicon has worked so far for me.
Tighten here.
Tighten there.
The rear head has an oversize heli-coil so the gasket needs oversized.
More silicon.
Now tighten the rear pipe and clean the silicon hand prints off the pipes with brake cleaner.
Oh yeah. Kick it off and listen to it run.
Oh poop, a push rod tube is still leaking. I just resealed those, but it didn't work.
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