Which internally regulated alternator? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

RICHARD MORGAN · 04-21-2005, 10:04 AM

This weekend I plan on converting my externally regulated alternator with an internally regulated unit. I’ve got a lot of good information on how to do it but was wondering which alternator you guys have been using. Any information you guys might have as far part number, make, model, or how many amps it might produce would be very helpful.

Thanks,
RICHARD MORGAN

Fred T · 04-21-2005, 10:41 AM

Easiest swap is to the 10SI or 12SI, which will give you 60-80 amps, depending on the model. When I bought one last year, my local parts store advised against the Delco rebuilds, said the were not lasting. He was having the best results out of the Performance Parts?? brand, said Bosch were almost as good but cost a lot more.

vfrdude · 04-21-2005, 11:53 AM

This should help -

http://www.madelectrical.com/electri...elcoremy.shtml

nathank · 04-21-2005, 05:37 PM

I just put a 10SI on my truck, Delco rebuild. Bought it at the parts store for $38. Working good so far!

72BLAZERDUDE · 04-21-2005, 06:15 PM

You can use one from a 85 Pontiac Trans Am. They go up to 108 amp.

see ten · 04-21-2005, 06:29 PM

Quote:

Originally Posted by 72BLAZERDUDE

You can use one from a 85 Pontiac Trans Am. They go up to 108 amp.

That is probably the same alternater that I use from an 84 Corvette which is also a 108 amp. The case is a little larger but as long as you have early style brackets it is no big deal. You will also have to change your plug-in on your wiring harness.

72gord · 04-21-2005, 06:40 PM

A friend of mine just picked up a single wire alternator from NAPA for under $60, not sure on amp or part number, but he just called and asked about a one wire set up and they said they had one in stock. You just hook up a hot wire, that is it!

CE20934 · 04-21-2005, 08:14 PM

NAPA P/N 13-4011SW probably.

That's what I have.

*Randy70C-10* · 04-21-2005, 10:35 PM

Hey Richard, are you still around? I was just thinking about you today, haven't heard from you in a while.

RICHARD MORGAN · 04-22-2005, 06:15 AM

Im still around. I've been really busy with the military thing. i'll be leaving for DC on June 1st. I'm just trying to get the truck ready for the long drive. I plan on replacing the fluids, belts, hoses, aand alternator before I leave. I also need to take care of some wiring issues. It looks like i'll be going with an alternator from a 85 Pontiac Trans Am.

Richard

04-21-2005, 10:04 AM	#1
RICHARD MORGAN Registered User Join Date: Jan 2004 Location: HERNDON VA Posts: 216	Which internally regulated alternator? This weekend I plan on converting my externally regulated alternator with an internally regulated unit. I’ve got a lot of good information on how to do it but was wondering which alternator you guys have been using. Any information you guys might have as far part number, make, model, or how many amps it might produce would be very helpful. Thanks, RICHARD MORGAN

04-21-2005, 10:41 AM	#2
Fred T Cantankerous Geezer Join Date: Aug 2002 Location: Bel Aire, KS Posts: 6,264	Easiest swap is to the 10SI or 12SI, which will give you 60-80 amps, depending on the model. When I bought one last year, my local parts store advised against the Delco rebuilds, said the were not lasting. He was having the best results out of the Performance Parts?? brand, said Bosch were almost as good but cost a lot more. __________________ Fred There is no such thing as too much cam...just not enough engine.

04-21-2005, 11:53 AM	#3
vfrdude Registered User Join Date: May 2002 Location: Oakley, Ca. USA Posts: 137	This should help - http://www.madelectrical.com/electri...elcoremy.shtml __________________ Rudy Fierros '95 Honda VFR750F Used to have a '71 Chevy Stepside, Guards Red, Lowered 4" rear, 3" front, White Oak bed wood, 700R4 w/373 gears until some low life stole it!

04-21-2005, 05:37 PM	#4
nathank resident geek Join Date: Jan 2005 Location: Dusty West Texas Posts: 77	I just put a 10SI on my truck, Delco rebuild. Bought it at the parts store for $38. Working good so far! __________________ 71 C-10 stepper 88 Moostang T-Top w/ lots of goodies

04-21-2005, 06:15 PM	#5
72BLAZERDUDE Registered User Join Date: Jan 2002 Location: WATAUGA,TX Posts: 675	You can use one from a 85 Pontiac Trans Am. They go up to 108 amp. __________________ 72 2wd 307/AT/AC/TILT WHEEL 78 JIMMY HIGH SIERRA Last edited by 72BLAZERDUDE; 04-21-2005 at 06:17 PM.

04-21-2005, 06:40 PM	#7
72gord Never enough time!! Join Date: Mar 2004 Location: sw Wisconsin Posts: 601	A friend of mine just picked up a single wire alternator from NAPA for under $60, not sure on amp or part number, but he just called and asked about a one wire set up and they said they had one in stock. You just hook up a hot wire, that is it!

04-21-2005, 08:14 PM	#8
CE20934 Senior Member Join Date: Apr 2002 Location: Help! I'm in an office park with its own network of freeways! Posts: 470	NAPA P/N 13-4011SW probably. That's what I have. __________________ '67 C20--427 tall deck/SM420, 4.10 HO52 (Michigan has not been kind to the Old Man) '95 Caprice--355 LT1/T56/3.42 8.5" 10-bolt (daily driver, almost 300k on the chassis) '07 Outback--wife's car. 125k & counting. No head gasket or transmission issues yet. fingers crossed

04-21-2005, 10:35 PM	#9
Randy70C-10 Account Suspended Join Date: Mar 2001 Location: Virginia Beach, Va. U.S.A. Posts: 15,320	Hey Richard, are you still around? I was just thinking about you today, haven't heard from you in a while.

04-22-2005, 06:15 AM	#10
RICHARD MORGAN Registered User Join Date: Jan 2004 Location: HERNDON VA Posts: 216	Im still around. I've been really busy with the military thing. i'll be leaving for DC on June 1st. I'm just trying to get the truck ready for the long drive. I plan on replacing the fluids, belts, hoses, aand alternator before I leave. I also need to take care of some wiring issues. It looks like i'll be going with an alternator from a 85 Pontiac Trans Am. Richard

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