Which alternator to use?

[wickedmach1]

I will be installing a 393 stroker in my 1970 Mach 1. I have a mechanical water pump and fule pump. I have dual electric radiator fans. I plan on installing a good stereo system but nothing too crazy. I was wondering which alternator to use. I was thinking about a 130amp unit. Which brands have you guys used and what amp alternator would you use for this combo? Thanks.

 

[Rusty67]

Use a Ford 3G. Most of them are 130 amp and they are easy to install.

 

[TOM B]

Powermaster makes a good upgrade One wire alternator and it gets rid of the external voltage regulator mess.

 

[Rusty67]

The Ford is also internally regulated and is better then a 1 wire alternator because of the voltage sensitivity instead of just producing output based on rpms.

 

[wickedmach1]

Where do I find information on the Ford 3G? Where can they be purchased? Will the 3G mount like the original 1970 alternator?

 

[Rusty67]

The 3g swap is so common, just search the classic forum and you will find a ton of info on it. You can get them out of V6 late model Mustangs up to I think 2004 and you can get them on the late 90s Taurus as well. They mount just like a stock 1g does. You may need to helicoil one bolt hole if you don't want to use a bolt and a nut to holt it on. Thats what I did on mine.