I need a better alternator for my '65 Riviera it seems... nailhead 425 engine and I have a stereo system now too... any particular brand or place to buy one..?? Thanks alot..!! -Snacks....
I like using the first-generation internal regulated GM alternators. The high output jobs [100-105 amp] in the 70's had a different mounting bracket than the lower powered ones and they were about 25% bigger externally. They came on caddys and some trucks and had 2 ears with through-bolt holes. They look like they'd be easy to fab up a mount for,for a nailhead. I don't know if a one-wire regulator will fit one of these or not. A good second choice would be an S-1 GM internal regulator with the 1 wire regulator. I've seen 'em in 90 amp versions and they interchange physically with the little 43 and 63 amp alternators..
[ QUOTE ] I like using the first-generation internal regulated GM alternators. The high output jobs [100-105 amp] in the 70's had a different mounting bracket than the lower powered ones and they were about 25% bigger externally. [/ QUOTE ] Ditto. I might even have one lying around. I'll check and let you know. Big Daddy Eric
[ QUOTE ] [ QUOTE ] I like using the first-generation internal regulated GM alternators. The high output jobs [100-105 amp] in the 70's had a different mounting bracket than the lower powered ones and they were about 25% bigger externally. [/ QUOTE ] Ditto. I might even have one lying around. I'll check and let you know. Big Daddy Eric [/ QUOTE ] I agree. i have the first gen that was something 65 amp and I converted it for around 30 or so dollars. It works like a champ and now puts out 105 amps to boot.
Current Saturn alternators are pretty resilient too. we use them on all of the racecars, they typically test @ 84 amps from 4000 rpm and up. you can speed it up on a street car, we normally turn them near 10,000 for long sunday drives. brandon
My daily driver [92 Lumina coupe] has a 105 amp alternator that's about 3/4 the size of an S-1. I've replaced it 4 times. It's so small, it has a tough time getting rid of the heat it takes to generate 105 amps and the plastic internals will melt! Since the A/C quit working, I've had no further problems with it but damn! If you need a steady 105 amps, I'd steer clear of these.........
[ QUOTE ] I might even have one lying around. I'll check and let you know. Big Daddy Eric [/ QUOTE ] Sorry Snacks, I don't have one of the HO alts laying around. I have something like a 65 amp. You could bump it up with a cheap kit and you're welcome to it if you pay the shipping. But it might be just as cheap for you to get one at a local Pick-Ur-Part. PM me if you think you need it and I'll get it on the way. BDE
It's all about Powermaster. No one else has done as much homework, and if you call 'em they'll build what you want. Tell them what you've got & what you need, and that's what you get. They're more expensive, and worth it. Scotch~!
Just go to the parts store and get a high output unit any GM externally regulated unit will work get one from a Cadillac with AC they are heavy duty...Or from a Bus etc...I used to hook up rodders at the parts store all day long its cheap and it works great!
We put a Powermaster 100 amp internally regulated GM 1 or 3 wire alt on my friend's car Sunday afternoon at York. He immediately got 14.3 volts and 30 amps charge at idle. Calmed down to +1 amp and 13+ once the battery recharged. Cost about $100 and had the best polish job I've ever seen on an aluminum alt. I had to "re-clock" the back to the proper position. I was very impressed with the way the inside looked. Everything was new and top of the line. I'll report if there are any problems when he goes to Louisville. Seems like he burned out an alt every time he went to the Nats. They couldn't handle the load of the electric fans.
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