Lowering Alternator mount?

Where can I buy an alternator bracket to lower the alternator on an LT1. The stock bracket and larger alternator will not clear the hood. I plan to retain the power steering perhaps add AC later, so an alternator only solution won't work.

I installed a LS3 Hot Cam motor and used CTS Kit from GM
Look at the GM Performance catalog
Max

You have to cut that bracket. You must also buy an alternator from a 1993 Buick Century (CS130) GM PN# 10463376. Once its cut and sized to your liking (or the alternators liking), you will have to take it to have it weelded back together (TIG). Its relatively inexpensive and quick.

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Thanks for the input. I think I'll go with the cut, stock bracket approach. Did you have to dent the valve cover for clearance (I think I read that somewhere)?

I personally didnt have to but some did due to the variance in where the cut/weld was made probably. It would be a very small dent if you had to though.

Could you measure the height where you cut the bracket? I just ordered the smaller alternator.

Thanks,

John

Sorry no I cant. Ive sold all my LT conversion stuff and went LS. But, once you have the alternator, you should be able to easily mount one ear of the new alternator and find that measurement.

Or, a nice LT member here can chime in with that? Fellas?

Heres another picture.

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Thanks for the picture. I'm picking up the alternator tomorrow and will get going on the cutting and welding.

doesnt pcmforless sell a altinator bracket for the stock alt. It relocates it to the lower passenger side. I am going to be get one myself.

What if I took a plate of steel and made a custom bracket for the stock alternator? Seems pretty easy if one had the tools readily available and would certainly be cheaper if you had a stock alternator that was in working order. I'm planning on just running the alternator on this first rendition of the swap (No power steering or A/C). Might think about adding the A/C later, but we'll have to see how that goes. Since I've only got one accessory running on that belt I veto the tensioner and make the alternator adjustable to tension the belt, Correct? Any idea were to place the alternator on the LT engine?

Sorry for the hijack, didn't want to create a new thread when this one is so closely related.

If you lower it on the passenger side say by, by AC!

944-LT1 is correct, you can do this by eye.
All I did was pivot the Buick alt down until it hit either the valve cover or the Alt bracket, can't remember which, then spaced it backup 1/4" or so.... TIG'd it and that was that!

Sorry to bring back such an old thread but i couldn't justify starting a new one for something thats been discussed so much.

Is anyone using this mount for the stock (Camaro) alternator? Does anyone see any apparent problems with this mount? I'll be using Long tube headers and only running the alternator for the time being.

It is about a third of the way down.

LT-1 Alternator - Click Me!!

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Im using a similar bracket but with the cs130 alternator. I had to buy a corvette harmonic balancer too... This would be cool if you could re-use the camaro alternator and not have to buy a new harmonic balancer.

Thats what I am hoping. What is the reason everyone is using the CS130 alternators? I realize they are smaller, but is there another reason? Can the camaro alternator not fit in there due to the frame rails or was it just easier to buy the smaller alt then mod the camaro bracket?

I missed out on alot of the LT conversations as they were not as mainstream when I started the conversion. I'm sure this has been covered before, but I've searched and searched on both forums and couldn't find the reason.

laptop_geek wrote:Thats what I am hoping. What is the reason everyone is using the CS130 alternators? I realize they are smaller, but is there another reason? Can the camaro alternator not fit in there due to the frame rails or was it just easier to buy the smaller alt then mod the camaro bracket?

I missed out on alot of the LT conversations as they were not as mainstream when I started the conversion. I'm sure this has been covered before, but I've searched and searched on both forums and couldn't find the reason.

Camaro alternator is too tall to fit.

He wants to use a bracket that lowers the stock alternator and gets rid of the stock bracket system. If you look on the first page he posted a picture. I don't see any reason why it wouldn't work.

spence wrote:He wants to use a bracket that lowers the stock alternator and gets rid of the stock bracket system. If you look on the first page he posted a picture. I don't see any reason why it wouldn't work.

Still think the Camaro alternator is too large for that area too.

I looked last night... There's more than enough room. I'm using this mount with the cs130 alternator and theres about 4 or 5" to the frame rail. There might be a problem with the radiator hose though. But I'm sure it would still clear.[You must be registered and logged in to see this image.]

Well I've done a little research and I think this is going to work. I make a pattern of a mount from wood and have got the alternator sitting on the block now. I still have to make some spacers to get the alternator pulley to line up with the crankshaft pulley, but that shouldn't be any problem. Here is a picture of how it is sitting now. I'll post more when I get the spacers made.

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Just wanted to post this picture for others that may search for the alternator bracket modification...

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Well I got the spacers made and it looks like everything is going to work just fine. I'm going to have the plate made up tomorrow and should have it installed soon. I'll post dims after everything is in. Also I am using the stock camaro harmonic balancer. I measured that you have between 33 3/4" and 35" for the belt length. The 35" measurement has the alternator touching the frame rail on my car (not ideal) and the 33 3/4" measurement is as close as I made the slot. I might have been able to make that slot larger thus getting a smaller distance.

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Dayco has a 34" 6 rib belt that should work (part# 5060340). Type the part# into the Dayco part lookup for more info.

Dayco Part Lookup