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These are a bit cheaper. It's what I went with being on a budget. The fit was great, no hammer needed.
Doug's Headers D452-B Doug's Headers | Summit Racing
Another note when using Doug's headers on 452 heads is that these heads have a ridge that won't let the header flange sit flat. I don't know if other heads have this or not.
Had to grind a bevel on the flange for it to fit flat.
The liquid Teflon works good. I've used Permatex #2 sealant also without any problems. Sealant on all of the studs or bolts.
There is a high temp sealer,
Permatex 27038 Optimum Red High Temperature Gasket Maker
I like to use a stud at each end of the head. Makes it easier to handle the header when installing. You can also slot the gasket at both ends then drop it into place when the header is hanging on the studs. Always use sealer on every stud and bolt.
Some of the bolts on a Doug's header go under...
Don't know if anti-seize will seal the bolt good enough to stop coolant from seeping. I like Permatex #2 on the bolt threads.
Nice job on the bolt removal. I was wondering if you had a welder. That's the way to do it:thumbsup: