Rebuilt magnum 360 Noise

I would try to find the source of the noise before you tear it all apart. Use a mechanics stethoscope. They are inexpensive and work pretty well. The one I have will let you screw the rod end off it leaving an open bell or upside down funnel shape on the end. It then works especially well for finding exhaust leaks at the manifold. It's a really handy tool. Here is one. There are many to choose from.
Lisle 52500 Lisle Mechanic's Stethoscopes | Summit Racing