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#1 |
Registered User
Join Date: Dec 2010
Location: Apison Tn
Posts: 490
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how to wire up a 1995 140Amp alternator on a 69
I already have aninternally regulated alternator wired up and charging but the newer alternator is good and just laying in my "spare parts" pile so a swap would be cool if anyone can help, the alternator came off of a buick roadmaster, LT1 car
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http://67-72chevytrucks.com/vboard/s...d.php?t=438550 ![]() ![]() 1994 Buick Roadmaster 1994 GMC Sonoma |
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#2 |
Msgt USAF Ret
![]() ![]() Join Date: Jan 2005
Location: Kalamazoo, Michigan
Posts: 8,723
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Re: how to wire up a 1995 140Amp alternator on a 69
Have a look here.
http://temp.corvetteforum.net/c3/zma...ternator01.htm
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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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#3 |
Its a Truck Thing......
Join Date: Dec 2004
Location: Sierra Vista, Arizona
Posts: 3,179
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Re: how to wire up a 1995 140Amp alternator on a 69
Keep an eye on the wiring, the red wire that goes across to the battery, if you use the 140 amp make sure the wire doesnt get really hot.
Smitty
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#4 |
Registered User
Join Date: Dec 2009
Location: Brooklyn N.Y.
Posts: 819
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Re: how to wire up a 1995 140Amp alternator on a 69
true, can`t hurt to run a heavier wire.
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#5 |
Registered User
Join Date: Dec 2010
Location: Apison Tn
Posts: 490
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Re: how to wire up a 1995 140Amp alternator on a 69
Ttt
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http://67-72chevytrucks.com/vboard/s...d.php?t=438550 ![]() ![]() 1994 Buick Roadmaster 1994 GMC Sonoma |
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#6 |
*** That's interesting ***
Join Date: Oct 2008
Location: Pittsburgh, PA
Posts: 2,772
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Re: how to wire up a 1995 140Amp alternator on a 69
What do you want to know that wasn't already in that article that VetteVet posted? There is tons of information here about swapping alternators if you poke around. The biggest issue is the regulator mod. The LT1 140A is a really good alt, but it will be configured for a serp and you need a V-belt pulley for your '69. I'd be curious too if there is an easy way to do that.............
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Tom ![]() Chevy by day... 1969 Chevy C30 Rollback Tow Truck -- 383 stroker, 4L80E 2011 Chevy Caprice PPV 9C3 6.0L 1995 Chevy Caprice 9C1 1994 Chevy Caprice 9C1 #3 1995 Chevy Caprice Wagon #2 1995 Chevy Impala SS Mopar by night... 1969 Dodge Charger 1972 Chrysler Newport 2dr Hardtop (27K miles) Plus others... |
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#7 |
Registered User
Join Date: Dec 2010
Location: Apison Tn
Posts: 490
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Re: how to wire up a 1995 140Amp alternator on a 69
im sure I can swap the pulleys and I already have an internally regulated alternator wired up and charging, I need to reread thru that article on an off day when my mind isnt fried lol
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#8 |
Hollister Road Co.
Join Date: Apr 2005
Location: Houston
Posts: 6,131
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Re: how to wire up a 1995 140Amp alternator on a 69
A single V belt may not be enough to drive a 140 amp alt. You may need to convert to a dual V belt or Serp setup
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#9 |
Registered User
Join Date: Sep 2009
Location: Weare,NH
Posts: 1,592
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Re: how to wire up a 1995 140Amp alternator on a 69
I have the SI series on my 86, running a ribbed pulley. Now should I swap over the pulley and fan or just the pulley? My alternator mounts on the right (passenger) side of the engine.
This thread made me do a little research and I realized that the stock 42 amp alternator will not be enough with the TPI conversion, it was barely enough before! |
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#10 |
Registered User
Join Date: Feb 2012
Location: Austin, Arkansas
Posts: 249
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Re: how to wire up a 1995 140Amp alternator on a 69
Changing the pulleys is easy.Just make sure you use the spacer that was with the original pulley.
Also,I just put a 105amp alt on my '85,and still used the v-pulley,with no problems.I used the alt from a '94 Grand Am. I did have to make a top mount/adjuster,but it works.
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