I have a 1962 chevy pick-up with a 1957 sb 283
I would like to replace the generator with an alternator or maybe even a 1 wire alt. but I haven't been able to find any good diagrams or instructions to do so can any one guide me ?

Doc here,

Very Simple swap..My advice is a 3 wire, SI series, Internally regulated alternator.

After getting your mechanical mountings set up, the wiring is as follows, If you have your external regulator still in tact..remove the red wires from the regulator and attach them together. (they support other power functions and must remain together):

Remove and connect the stock wires to the alternator as shown..EXCEPT for, the big red output wire...run that Via a proper Fuse link to the starter battery terminal on the solenoid..use a 10 Gauge wire.



If you don't have stock wires to follow,

• Big red 10 gauge to the starter battery terminal on solenoid.
  
• Terminal 2 to the horn relay power (or may be jumped to the big red wire)
  
• Terminal 1 to the idiot lamp.
  
• 10 gauge ground wire from the ground lug or mount bolt to your ground buss.

Thats it.

Doc

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Thanks Doc
for the input and the diagram.