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#1 |
Registered User
Join Date: Jan 2012
Location: Redondo Beach California
Posts: 146
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Need a bigger alternator
I need a 100 amp alternator, I was wondering if I can use a alternator from a later 70s or even 80s truck because some of the 454 models had bigger alternator. I currently have a 60 amp and it doesn't keep up with my electric fans. My truck has a 402 big block. Do the newer model alternators bolt the same way my does? I thought I've seen this before on this forum.
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343 NEVER FORGET 9-11 FIGHT ON!!! GO USC!!! PROUD OWNER OF A 1970 ![]() |
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#2 |
Registered User
Join Date: Jun 2011
Location: United States
Posts: 158
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Re: Need a bigger alternator
Powermaster made me a 225amp alternator for my LS project. They can probably provide you with what you need.
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#3 |
Senior Member
![]() Join Date: May 2002
Location: Hammond, WI
Posts: 1,804
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Re: Need a bigger alternator
I went straight from the stock, externally regulated alternator to a CS144 (from a 1994 Chevy Caprice with the police package). It bolted into the same location without any modifications. I did have to modify the wiring a little, but that was it.
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Mike 2001 Dakota R/T - Silver CC - 1 of 1671 •360 w/46RE •392 limited slip 1972 Chevy Suburban - Turquoise/Black 1969 Chevy C/10 - Blue LWB •350 w/ 700R4 •3.73 posi •PS PB A/C - SOLD ![]() Using your turn signal is not "giving information to the enemy" 67-72 FAQ |
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#4 |
Registered User
Join Date: May 2012
Location: Eastern, NC
Posts: 429
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Re: Need a bigger alternator
I use a Powermaster 140 amp GM 12si style alt I got flebay a few years ago. In my truck I run two air compressors and a small amp. Alt. works great and I've had no issues in the past 2 years.
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#5 |
Registered User
Join Date: Jan 2012
Location: Redondo Beach California
Posts: 146
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Re: Need a bigger alternator
Thanks for the suggestions!
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343 NEVER FORGET 9-11 FIGHT ON!!! GO USC!!! PROUD OWNER OF A 1970 ![]() |
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#6 |
Moderator
![]() Join Date: May 2007
Location: Southern Cal
Posts: 20,006
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Re: Need a bigger alternator
Powermaster. Made here and excellent technical support.
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1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man |
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#7 |
Registered User
Join Date: Jan 2011
Location: Chattanooga, TN
Posts: 2,151
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Re: Need a bigger alternator
Another vote for CS144. They last long and have good idle amperage, which is important for electric fans.
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'83 K20-TPI '73 C10 '79 C10-ex-diesel(SOLD) '07 Tahoe(Son driving) '14 Suburban-DD '71 C10-current project |
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#8 |
Registered User
Join Date: Jan 2012
Location: Redondo Beach California
Posts: 146
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Re: Need a bigger alternator
Do they have a external regulator or internal regulator?
__________________
343 NEVER FORGET 9-11 FIGHT ON!!! GO USC!!! PROUD OWNER OF A 1970 ![]() |
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#9 |
Registered User
Join Date: Jun 2011
Location: United States
Posts: 158
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Re: Need a bigger alternator
Check out their website, they have all kinds.
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#10 |
Registered User
Join Date: May 2012
Location: Eastern, NC
Posts: 429
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Re: Need a bigger alternator
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