Hey anyone I was wondering can I use a V6 wire harness for a V8 RS boot? I just need the harness to get power to my car for all accessories to work? I need help for that question

 

You might want to provide a bit more information. If you're going for a standalone after-market EFI V8 or a carbureted V8, you don't need many wires from the original engine harness in the engine bay at all. Try reading more in the v6-to-v8 swap posts to get a general idea of the purpose of the wires in the v6 harness.