What did you do to your truck today.The 3rd chapter

[BRL]

Originally Posted by KQQL IT

. ..And 4 -1 on a sbc been together since 2016 zero maintenance
nor leaks...

I've been very impressed with these crusty old headers, I used copper gaskets on the heads and collectors and added Permetex copper colored gasket sealant to them.
I also cut the metal bars between the ports because I read that would help to prevent any metal warpage from unsealing the ports.
Must have done something right because I installed the headers around 1999 and they've sealed perfectly ever since.