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C-Kwik »
https://forums.nicoclub.com/c-kwik-u426.html
Wed Aug 16, 2006 9:25 pm
The Nissan exhaust manifold studs are the same threading and size and work perfectly. Most dealers stock them. And the corresponding nuts from Nissan are mechanical locknuts. Both can handle the heat and while not the cheapest hardware, they are not expensive. The nuts come in 2 versions as well. One is pretty much just a nut while the other has a washer-like width built into the base of it. You might want to get a hold the ones with out the washers and a few extra for the manifold as well. There is at least a couple of studs for the manifold to head connection on the rev-hard mani that are going to be a little tight and may have a hard time clearing a larger width nut.