Can i use this alternator???? Close to motor completion. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

lyrikz · 08-03-2008, 08:55 PM

Im assembling the motor (454) and putting on all the accessories. The alternator is from an 81 chevy. My truck is a 71 stepside... Can i run that alternator??? What alt do i need if that doesnt work? Just buy an alt for a 71 chevy big block?

Any belt routing pics anyone can post up? Thanks for the help.

lyrikz · 08-04-2008, 12:38 AM

Quote:

Originally Posted by lyrikz

Im assembling the motor (454) and putting on all the accessories. The alternator is from an 81 chevy. My truck is a 71 stepside... Can i run that alternator??? What alt do i need if that doesnt work? Just buy an alt for a 71 chevy big block?

Any belt routing pics anyone can post up? Thanks for the help.

Anyone??????????????????

**kwmech** · 08-04-2008, 10:39 AM

You will hafta do a little bit of rewire to make it work properly, but it will bolt right on

FRENCHBLUE72 · 08-04-2008, 10:43 AM

Can you post a pic of your power steering set-up? You can run any alt you want just need to make sure the wiring is set-up correctly. Has the truck been rewired most aftermarket wiring kits have the extra alt kits included..

lyrikz · 08-04-2008, 01:41 PM

Quote:

Originally Posted by FRENCHBLUE72

Can you post a pic of your power steering set-up? You can run any alt you want just need to make sure the wiring is set-up correctly. Has the truck been rewired most aftermarket wiring kits have the extra alt kits included..

No, wiring looks to be new original from the looks of the wires.

So, i believe my old alt. was a one wire alternator. This alternator has i believe 2 blank spades and a terminal on the rear of it. How do you wire the alternator???

Any particular pics you need on the PS setup.???

FRENCHBLUE72 · 08-04-2008, 04:11 PM

where does this bracket go???

lyrikz · 08-04-2008, 06:35 PM

Quote:

Originally Posted by FRENCHBLUE72

where does this bracket go???

that bolts to the power steering pump under the actual pulley.

**VetteVet** · 08-04-2008, 06:11 PM

try this----http://67-72chevytrucks.com/vboard/showthread.php?t=119379

Or this----http://www.chevelles.com/techref/tecref14.html

**truckdude239** · 08-04-2008, 07:08 PM

here try this link external to internal voltage reg. converison

lyrikz · 08-04-2008, 11:29 PM

Quote:

Originally Posted by truckdude239

here try this link external to internal voltage reg. converison

So, my 71 does not have a regulator, it had a alternator with a internal regulator on it. So my question now is, i have the new alternator with 3 wires. One post, and then two wires on a plug on the top. Where do those three go??? One is labelled battery and is pretty obvious. Then there are the other two wires. A thick red wire and another thinner wire.... Any help??

**VetteVet** · 08-05-2008, 10:12 AM

http://www.6066gmcguy.org/charging.htm

08-03-2008, 08:55 PM	#1
lyrikz PITbut Join Date: Sep 2007 Location: monroe washington Posts: 3,052	Can i use this alternator???? Close to motor completion. Im assembling the motor (454) and putting on all the accessories. The alternator is from an 81 chevy. My truck is a 71 stepside... Can i run that alternator??? What alt do i need if that doesnt work? Just buy an alt for a 71 chevy big block? Any belt routing pics anyone can post up? Thanks for the help.

08-04-2008, 10:39 AM	#3
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,630	Re: Can i use this alternator???? Close to motor completion. You will hafta do a little bit of rewire to make it work properly, but it will bolt right on

08-04-2008, 10:43 AM	#4
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,606	Re: Can i use this alternator???? Close to motor completion. Can you post a pic of your power steering set-up? You can run any alt you want just need to make sure the wiring is set-up correctly. Has the truck been rewired most aftermarket wiring kits have the extra alt kits included.. __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

08-04-2008, 04:11 PM	#6
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,606	Re: Can i use this alternator???? Close to motor completion. where does this bracket go??? Attached Images __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

08-04-2008, 06:11 PM	#8
VetteVet Msgt USAF Ret Join Date: Jan 2005 Location: Kalamazoo, Michigan Posts: 8,718	Re: Can i use this alternator???? Close to motor completion. try this----http://67-72chevytrucks.com/vboard/showthread.php?t=119379 Or this----http://www.chevelles.com/techref/tecref14.html __________________ VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative.

08-04-2008, 07:08 PM	#9
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,237	Re: Can i use this alternator???? Close to motor completion. here try this link external to internal voltage reg. converison __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

08-05-2008, 10:12 AM	#11
VetteVet Msgt USAF Ret Join Date: Jan 2005 Location: Kalamazoo, Michigan Posts: 8,718	Re: Can i use this alternator???? Close to motor completion. http://www.6066gmcguy.org/charging.htm __________________ VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative.



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