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07-18-2003, 08:39 PM
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#1 |
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Registered User
Join Date: Feb 2003
Location: Midwest City, OK
Posts: 1,001
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Stock amps of an 87 alternator?
Whats the stock amp rating of an 87 alternator? Mine doesn't have a sticker or anything on it. Probly been replaced. How can I measure the amperage??
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Robert Current: 1986 SWB Silverado 4.3 / TH400 Past: 1985 SWB Silverado 305 / TH350 - sold 1995 1987 1/2 ton Silverado - FI 350 / 700R4 sold 2007 |
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07-18-2003, 11:30 PM
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#2 |
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Registered User
Join Date: Feb 2003
Location: Midwest City, OK
Posts: 1,001
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Anyone have a guess? I'm itchin' to put some electric fans in but I need to know the least amount of amps I can have.
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Robert Current: 1986 SWB Silverado 4.3 / TH400 Past: 1985 SWB Silverado 305 / TH350 - sold 1995 1987 1/2 ton Silverado - FI 350 / 700R4 sold 2007 |
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07-19-2003, 11:33 AM
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#3 |
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?
Join Date: Jul 2002
Location: Dyersburg, TN
Posts: 471
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just a guess i would say 60 something, seems like all the stock alternators i ever put on our trucks was i think 64 or something like that, but its just a guess.
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07-19-2003, 12:46 PM
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#4 |
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Senior Member
Join Date: Apr 2002
Location: Beaverton, OR
Posts: 1,615
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If it helps, my 78 C-10 has the optional hi-output alternator which is rated at 55 amps. Just ordered a 180 amp. one to take care of future needs and upcoming dual electric fans.
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Mitch 1978 Chevrolet Silverado C 10 454 BB, TH400 |
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07-19-2003, 01:20 PM
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#5 |
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Registered User
Join Date: Feb 2003
Location: Midwest City, OK
Posts: 1,001
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O'reilly's has a reman. AC Delco 100 amp. for $44 plus core. Does that fall under the "get what you pay for" slogan?
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Robert Current: 1986 SWB Silverado 4.3 / TH400 Past: 1985 SWB Silverado 305 / TH350 - sold 1995 1987 1/2 ton Silverado - FI 350 / 700R4 sold 2007 |
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07-19-2003, 02:29 PM
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#6 |
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Senior Member
Join Date: Apr 2002
Location: Beaverton, OR
Posts: 1,615
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Depends on the warranty. The one I am buying has a 2 year warranty. $44 is not a bad price.
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Mitch 1978 Chevrolet Silverado C 10 454 BB, TH400 |
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07-20-2003, 08:53 PM
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#7 |
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Registered User
Join Date: Mar 2000
Location: Clute, TX.
Posts: 1,935
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i got mine for i believe an 88 and its a 150 amp. serpentine. most of them are of the same amperage. i think you will need at least 100 amp to run electric fans and AC. BTW mine is from AUTOZONE and cost 150.00 bucks with a lifetime warranty.
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2004 Silverado Crewcab 1972 Chevy Monte Carlo 2017 Chevy Tahoe |
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07-23-2003, 02:30 PM
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#8 | |
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Registered User
Join Date: Jul 2001
Location: Atlanta GA
Posts: 1,704
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Quote:
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Grim-Reaper 70 Pontiac LeMans Sport Convertible, worlds longest resto in progress Looking for 71-72 2wd Blazer or Jimmy Project |
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