I bought a new to me s360 that I'm going to try to rebuild myself and need to know what down pipe im going to need guys. How can I tell what down pipe I need??
If it's a flat sealing surface it's an hx35 or 40 style outlet, if the sealing surface is angled its a marmon flange. Just take a picture and post it on here and just measure it with a tape measure. It's probably a 4 inch marmon outlet.