Nope, sorry that's a 6V diagram. I assumed you wanted 6V when you said it was a 601 gas engine. Only the diesels from that series got the 12 V from the factory. If your gas 601 is a 12 V then it's a conversion and all bets are off since there are so many different ways to accomplish a 12V conversion.
The factory 12V diesel wiring diagram is also on the Vintage Ford Tractor Resource.