Air hose plug

[Artemis]

Okay, this seems like a random question but I'm hoping someone has the answer. Since I installed a 96 engine in my 95 GTP, I have the exhaust manifolds with the air hoses from the air pump connected. I've eliminated the hoses, and filled the hole with a cylinder that seems to be sealing it, but its only a bandaid. I was wondering if anyone knew the thread size for the hole in the manifold so I can get a proper plug.

[deathamatend]

Check the plumbing aisle. I want to say it's an NPT thread on the fitting. Use RTV copper or even better RTV nickel as a thread sealant. They handle the exhaust heat better.