Do the "CS" style alternators fit our stock brackets? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

saxart · 05-14-2017, 10:00 AM

Not really an electrical question, hence the post here.

I know the wiring is different, but will a CS144 alternator physically fit the stock brackets on a (short water-pump) 350SBC? I've read that these alternators are bigger externally than the stock alternators, but couldn't find anything about if they fit (without mods) after a search here.

Thanks!

ryangreen19 · 05-18-2017, 12:36 AM

I tried without any luck on a 68 c10, had to get a custom upper bracket and used a 71-72 lowee bracket to tie it to the head. i dont even think alan Grove makes a cs 144 compatible bracket. My custom upper was just a long thin 1/4" piece cut into a slight boomerang. Nothing fancy.

**clay68c10** · 05-18-2017, 11:19 AM

CS130 will, you just have to get the right clocking. Not a 144, but I've used a couple and had good results. I did do the iceberg conversion on them just for insurance since the rear bearing is a weak point.

Andy4639 · 05-18-2017, 11:46 AM

Late model alternator with factory brackets.

Also a factory truck bracket setup on a 64 SS Impala motor with a 94 amp alternator..

saxart · 05-18-2017, 10:46 PM

Quote:

Originally Posted by firedemon

not trying to knock you but why all the trouble a 12 si is high amp and fit right in

12si - 94amp Max

CS130 - 140amps

Andy4639 · 05-19-2017, 06:41 AM

Unless you have some need for the higher amp alternator there is really no need for it. If you have a high power stereo competition system then yea but for most trucks the 94 amp is more than enough. They bolt right in and if you buy the right one it hooks up just like the factory one.
I have done several of these upgraded alternators and re do the wiring so they look pretty much factory.

davepl · 05-19-2017, 10:53 AM

I'm a big fan of the 12SI as well (321-266). It does max out at 94A, but that's still a lot of amps. You could weld with your headlights on.

demian5 · 05-19-2017, 11:36 AM

Quote:

Originally Posted by Andy4639

Unless you have some need for the higher amp alternator there is really no need for it.

Yeah I have a stock 60A external regulated in my 64 impala with about 1200 watts going through the stereo. Never has given me problems.

But the Cap and the Optima may be of some assistance, along with the fact that the ignition is the only other thing requiring energy while driving...

I have a nice 1-wire that has been laying around forever cause I have not had the need to install it. Brand new alternator, a little beat up from being moved plate to place though...

Andy4639 · 05-19-2017, 12:41 PM

Quote:

Originally Posted by demian5

Yeah I have a stock 60A external regulated in my 64 impala with about 1200 watts going through the stereo. Never has given me problems.

But the Cap and the Optima may be of some assistance, along with the fact that the ignition is the only other thing requiring energy while driving...

I have a nice 1-wire that has been laying around forever cause I have not had the need to install it. Brand new alternator, a little beat up from being moved plate to place though...

Have we been talking on the Chevy talk forum also.
In my opinion a one wire alternator isn't as good as most think. At idle it's not even putting anything back into the battery unless it's been modified even more.
Mad electric is very helpful on this subject.

**VetteVet** · 05-19-2017, 05:17 PM

Andy this thread has puzzled me since I haven't heard of any problem mounting the CS 130 or the 144 in the stock mount. The AD 244 is a different story because it is a bigger body and the mount has to be modified. You wouldn't need that one unless you were running bags and a huge amp though.

Andy4639 · 05-19-2017, 10:20 PM

Quote:

Originally Posted by VetteVet

Andy this thread has puzzled me since I haven't heard of any problem mounting the CS 130 or the 144 in the stock mount. The AD 244 is a different story because it is a bigger body and the mount has to be modified. You wouldn't need that one unless you were running bags and a huge amp though.

I can't comment on it because I haven't tried it before. I do know as you know the 94 amp works great for a truck with upgrades but not bags and high amp speakers.

hdff · 05-21-2017, 08:42 PM

Quote:

Originally Posted by Andy4639

Unless you have some need for the higher amp alternator there is really no need for it. If you have a high power stereo competition system then yea but for most trucks the 94 amp is more than enough. They bolt right in and if you buy the right one it hooks up just like the factory one.
I have done several of these upgraded alternators and re do the wiring so they look pretty much factory.

I wish you lived closer so you could help me with mine

Andy4639 · 05-21-2017, 09:56 PM

Quote:

Originally Posted by hdff

I wish you lived closer so you could help me with mine

What do you need man? Between Vett and me we can talk you through it. It's pretty simple really.

Trouble with your truck lights dimming are music fading in and out? Chances are the 37 amp alternator isn't putting enough amps out to power the system.
The fix is pretty simple though.
a 95 Buick Riviera 94 amp alternator
The pictures say it all.
If you want to clean the wiring up even more just strip the tape off and run the wires straight to the alternator. Then take the old external voltage regulator out of the truck and toss it!

Rich72C10 · 01-07-2021, 12:02 PM

your photo, shows 12:00 example but the 12SI on O'Riley's is clocked at 9:00. Though it is for 1985 Buick Riviera and not a 95 Buick Riviera from your post.

Edit: if I am l am looking at the stock alt correctly, the connect is at 12:00... so that is the better "fit" I am guessing?

**DeadheadNM** · 01-07-2021, 12:23 PM

Here’s the internally regulated alternator on a former Blazer of mine. Bolts right in and I used the plug and play adapter from AAW. Clocked at 3:00 I believe: https://www.napaonline.com/en/p/RSE2134356

Andy4639 · 01-07-2021, 05:56 PM

Quote:

Originally Posted by Rich72C10

your photo, shows 12:00 example but the 12SI on O'Riley's is clocked at 9:00. Though it is for 1985 Buick Riviera and not a 95 Buick Riviera from your post.

Edit: if I am l am looking at the stock alt correctly, the connect is at 12:00... so that is the better "fit" I am guessing?

The 10 years difference in year model is what is wrong. GM changes things in 10 years. If you get the 95 it will bolt right in.

hdff · 01-08-2021, 02:11 PM

I just swapped to this one 2weeks ago. worked great with my stock bigblock brackets. Was Clocked correct, 105 amp. Had to get a different plug with a resistor and bypass the regulator. Off of a 89 Pontiac safari.

Keith

05-14-2017, 10:00 AM	#1
saxart Registered User Join Date: Aug 2012 Location: St. Croix River Valley, WI Posts: 795	Do the "CS" style alternators fit our stock brackets? Not really an electrical question, hence the post here. I know the wiring is different, but will a CS144 alternator physically fit the stock brackets on a (short water-pump) 350SBC? I've read that these alternators are bigger externally than the stock alternators, but couldn't find anything about if they fit (without mods) after a search here. Thanks! __________________ Meet "Old Roy": http://67-72chevytrucks.com/vboard/s...d.php?t=707801

05-18-2017, 12:36 AM	#2
ryangreen19 Registered User Join Date: Aug 2004 Location: calgary alberta Posts: 20	Re: Do the "CS" style alternators fit our stock brackets? I tried without any luck on a 68 c10, had to get a custom upper bracket and used a 71-72 lowee bracket to tie it to the head. i dont even think alan Grove makes a cs 144 compatible bracket. My custom upper was just a long thin 1/4" piece cut into a slight boomerang. Nothing fancy.

05-18-2017, 11:19 AM	#3
clay68c10 Senior Member Join Date: Aug 2004 Location: Centennial, CO Posts: 2,996	Re: Do the "CS" style alternators fit our stock brackets? CS130 will, you just have to get the right clocking. Not a 144, but I've used a couple and had good results. I did do the iceberg conversion on them just for insurance since the rear bearing is a weak point. __________________ ClusterTruck: 68 C10 Bought in 89, wrecked in 03. Slow low $ rebuild started '17. 6.0 & TKO http://67-72chevytrucks.com/vboard/s...d.php?t=788602 93 K1500 Short Step, 350, NV4500, EBL flash ECU. Vortec heads & roller cam someday... 05 Jeep Wrangler Unlimited. 3” lift & 6-speed 02 E320 the insurance total “free car” 13 Tahoe LTZ

05-18-2017, 11:46 AM	#4
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: Do the "CS" style alternators fit our stock brackets? Late model alternator with factory brackets. Also a factory truck bracket setup on a 64 SS Impala motor with a 94 amp alternator.. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

05-19-2017, 06:41 AM	#6
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: Do the "CS" style alternators fit our stock brackets? Unless you have some need for the higher amp alternator there is really no need for it. If you have a high power stereo competition system then yea but for most trucks the 94 amp is more than enough. They bolt right in and if you buy the right one it hooks up just like the factory one. I have done several of these upgraded alternators and re do the wiring so they look pretty much factory. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

05-19-2017, 10:53 AM	#7
davepl Registered User Join Date: Aug 2006 Location: Redmond, WA Posts: 6,334	Re: Do the "CS" style alternators fit our stock brackets? I'm a big fan of the 12SI as well (321-266). It does max out at 94A, but that's still a lot of amps. You could weld with your headlights on. __________________ 1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible

05-19-2017, 05:17 PM	#10
VetteVet Msgt USAF Ret Join Date: Jan 2005 Location: Kalamazoo, Michigan Posts: 8,719	Re: Do the "CS" style alternators fit our stock brackets? Andy this thread has puzzled me since I haven't heard of any problem mounting the CS 130 or the 144 in the stock mount. The AD 244 is a different story because it is a bigger body and the mount has to be modified. You wouldn't need that one unless you were running bags and a huge amp though. __________________ VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative.

01-07-2021, 12:02 PM	#14
Rich72C10 Mr. Cheyenne Join Date: Jun 2020 Location: Kyle, Texas Posts: 1,687	Re: Do the "CS" style alternators fit our stock brackets? your photo, shows 12:00 example but the 12SI on O'Riley's is clocked at 9:00. Though it is for 1985 Buick Riviera and not a 95 Buick Riviera from your post. Edit: if I am l am looking at the stock alt correctly, the connect is at 12:00... so that is the better "fit" I am guessing? __________________ Richard *'72 Chevy C10 Cheyenne Super WHT/MED BRONZE/WHT SBC 350 \| TH350 \| LWB \| AC \| Buddy Seats Upgrades:** Tilt \| Front Sway Bar \| Radio \| Sliding Window \| Bed Spare w/Lock Bed Rails \| Full LEDs \| Courtesy Lights \| Tachometer \| Glovebox Lock & Light \| Head Light Relays \| Upgraded Fully Super Trim Last edited by Rich72C10; 01-07-2021 at 12:09 PM.*

01-07-2021, 12:23 PM	#15
DeadheadNM Carpe manana Join Date: Dec 2010 Location: Eau Claire, WI Posts: 12,451	Re: Do the "CS" style alternators fit our stock brackets? Here’s the internally regulated alternator on a former Blazer of mine. Bolts right in and I used the plug and play adapter from AAW. Clocked at 3:00 I believe: https://www.napaonline.com/en/p/RSE2134356 Attached Images __________________ 1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 Members met: ORANGBLAZ, 2003 silverado, MikeCofield, BB72CHEVKT, Duncan&Son, Sameyrasmea72, THENEWMEXICAN, HotRod C/10, brianthelion02, Sport/Truck, ryanroo, michael bustamante, Dirt's72, Already Gone, WestButteTruck, 57taskforce, Moreyel, painterljp, AASmedic, SoCoC10, Lumaestas, carbuff382, Chevyland Last edited by DeadheadNM; 01-07-2021 at 12:24 PM. Reason: Added

01-08-2021, 02:11 PM	#17
hdff Registered User Join Date: Apr 2007 Location: pasadena,TEXAS Posts: 880	Re: Do the "CS" style alternators fit our stock brackets? I just swapped to this one 2weeks ago. worked great with my stock bigblock brackets. Was Clocked correct, 105 amp. Had to get a different plug with a resistor and bypass the regulator. Off of a 89 Pontiac safari. Keith Attached Images __________________ 1971 Cheyenne SWB 402BB, 700R4, 3.73 posi, PS, PB, A/C, Tilt, Tach "Wanda" Don't argue with idiots, People watching may not be able to tell the difference... There's someone in my head........But it's not me...... cheap tricks thread great info here!! http://67-72chevytrucks.com/vboard/s...d.php?t=489394 Last edited by hdff; 01-08-2021 at 03:04 PM.



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