C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Big Block Alternator

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Old Jan 29, 2009 | 09:14 PM
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Default Big Block Alternator

I have a 74 with a big block 540ci Dart block motor, I am running an electric water pump and looking for a high output mini alternator around 100amp, which could be mounted as a low mount to clear the electric water pump, any suggestions would be appreciated. Thanks...
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Old Jan 30, 2009 | 01:05 AM
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From: Foxfield CO 1970 Convertible
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If you're not afraid of used equipment, I found tons of CS-144s (140 amp) in a junk yard.

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Old Jan 30, 2009 | 09:07 AM
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Originally Posted by POLY
I have a 74 with a big block 540ci Dart block motor, I am running an electric water pump and looking for a high output mini alternator around 100amp, which could be mounted as a low mount to clear the electric water pump, any suggestions would be appreciated. Thanks...

I agree the CS144 is a great power upgrade but it certainly isn't 'mini' in fact it's bigger than the SI cases.

However, the CS130 is the little brother to the CS144. It's a 100 amp max alternator, with 60 amps at idle which is very good. Get the right one and it's a direct swap in for your stock alternator once you change the pulley and get a different adjustment bolt for the Metric threads.

You'll need an adapter from Napa for the wiring so you have the resistance the new alternator needs, but it's a very easy swap and it's smaller than the CS144.

http://photos.imageevent.com/durango...%20Install.pdf
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Old Jan 30, 2009 | 10:37 AM
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Default mini alternator

space is an issue, the stock size alt does not fit a low mount install, it hits the front frame crossmember and the block, a mini alt (smaller dia) with high amp output is needed...
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Old Jan 30, 2009 | 02:35 PM
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From: wilmington nc
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have you seen these? I saw one on a chevelle an its tiny,
http://www.gzmotorsports.com/racing-alternators.html
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Old Feb 3, 2009 | 07:00 PM
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Thanks, I'll give them a call...
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Old Feb 4, 2009 | 12:33 AM
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From: Taylor Michigan
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.

You may not be aware of this alternator unless you have access to a parts store or service center, But there is a direct replacement 94 amp alternator available at more knowledgeable parts stores or re builders. You dont have to change a thing, bolts directly on and it actually matches the appearance of your old GM except 94 Amp Delco. Zero other parts required.
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Old Feb 5, 2009 | 02:29 PM
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Here is what I used on mine.


http://www.jegs.com/i/Moroso/710/63840/10002/-1
http://www.jegs.com/i/Moroso/710/63841/10002/-1

[IMG][/IMG]
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