Gm alternator on f engine.

[rc6340]

Hey guys, I’ve got an f motor I want to put a gm alternator on. I have it mounted with a 2f bracket.
What do I need to get pulleys to line up for belt ?
Thanks, Rick

 

[Steamer]

Depends on which GM alternator and which pulleys you have. Some pics would help.

 

[Steamer]

On my 74 F.5, I modified a 2F bracket to position a GM 12si alternator with a narrow pulley to line up with the narrow grooves on my 2-grooved pulleys on the water pump and crank. I wanted to save the wide grooves for a P.S. pump.
It's a 170 amp 12si clone from alternatorparts.com.

It came out great, running for years and works well but a bit of work to do. I wouldn't do it again. There are easier and better bolt on options

 

[ToyotaMatt]

Hey guys, I’ve got an f motor I want to put a gm alternator on. I have it mounted with a 2f bracket.
What do I need to get pulleys to line up for belt ?
Thanks, Rick

- Why ?

f motor I want to put a gm alternator on

- Why Not a :

.

 

[ToyotaMatt]

I might be able to think of 11 Good reasons that’s a poor choice …


.

 

[rc6340]

Thanks for the replies, As to why, I thought that a single wire, higher voltage gm alternator was a good upgrade over stock and fairly easy to do.

 

[ToyotaMatt]

Thanks for the replies, As to why, I thought that a single wire, higher voltage gm alternator was a good upgrade over stock and fairly easy to do.

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what AMPS is there Remmy ?