Originally Posted by Slbaker22
That is great information. Do you know where the fusible like would be located?
Not specifically, but if a mechanic found where it connects to the main ignition block you can trace it back from there. Sometimes they come straight from the battery and go to the main ignition fuse panel. The fusible link is the only protection from the heavy wire, probably an 8 or 6 gauge to handle what might be 50 amps to the main fuse panel. If a mechanic put a temporary wire in, he must have found the main input to the fuse block.
As I said, the main will be larger that the rest of the smaller wires that run the 5, 10, 15, 20, 25, and 30 amp accessories. If you can physically trace it with your hand, follow it down and you will find a short section, 1-2 inches that is larger than the wire and looks different. Often you can see it is burnt. Or if you wiggle it it might break off in your hands. If you can't get the exact Chevy part, you can buy universal ones and put whatever connectors you need need on it.
Again, as I said. It is the only protection from battery power to the ignition block. It is usually close as possible to the battery. There may also be a heavy wire that goes down to a junction block, that has several feeds coming off it. But that would be very short, as in this case there would be no protection from the battery to the junction block. Normally you can find it on the firewall. It also may be enclosed in a plastic wire loom. Hence if you can trace it back from the ignition block, you might find it in that loom. Rarely, (but I have seen it) it is not in a loom with any other wires.