Alternator ?
Thread Starter
Intermediate
Joined: Mar 2022
Posts: 49
Likes: 5
From: Lake Grove NY , Long Island
Alternator ?
Has anyone ever switched from a 120A Alt to the 108A ? i have the 120A option now , car is all stock have not added anything and dont plan on it , there is such a big $ difference between them
Le Mans Master
Joined: Aug 2017
Posts: 6,933
Likes: 1,487
From: New Jersey
I believe the 84 had either a 97 or 108 amp option (I'd have to double check) but I can say at idle the 108 wasn't enough even stock, lights would dim somewhat. I ended up going to a CS144.
But to answer your question, I don't believe there are any issues preventing the swap. Both the 120 and 108 are a 17si case so it should be okay... I looked at some reman units in the past and a 120 vs a 108 was only about a 5$ difference but that was searching online units/rebuilders. I rebuilt my 17si years ago for about 30$.
Team Owner
Joined: Sep 2003
Posts: 25,361
Likes: 2,729
Even GM when replacing the 108A for an '85 used/suggested the 120A and I'd think as mentioned there should be minimal $$ involved.
Most in the 'after-market' I'd think would maybe use the same 120A.
An '85 108A original would be a 1105450 and the 120A 1105585 - when searching or shopping 'local' compare both and there should be few $$. I'd think. Where are you shopping that you see several $$$ difference?
17SI parts may be a difficult 'local' buy for a DIY.
Do you believe yours is original or maybe an already replaced reman?
Most in the 'after-market' I'd think would maybe use the same 120A.
An '85 108A original would be a 1105450 and the 120A 1105585 - when searching or shopping 'local' compare both and there should be few $$. I'd think. Where are you shopping that you see several $$$ difference?
17SI parts may be a difficult 'local' buy for a DIY.
Do you believe yours is original or maybe an already replaced reman?
Last edited by WVZR-1; Apr 9, 2022 at 09:55 AM.
Thread Starter
Intermediate
Joined: Mar 2022
Posts: 49
Likes: 5
From: Lake Grove NY , Long Island
Between E Bay Motors and Rock Auto i can definitely get 99% of the stuff i need , and i know that the standard package for the 85 offered the 108A but the more reading i do the more i am sure i will not go that route for sure !!!
Team Owner
Joined: Sep 2003
Posts: 25,361
Likes: 2,729
Do you believe yours is original or maybe an already replaced reman?
I'd buy from a 'single source' vs your mentioned sources..
These guys would do you well. If the link sticks that would be an appropriate 120A 17SI I believe.
https://www.aspwholesale.com/search....88&_a=category
Last edited by WVZR-1; Apr 9, 2022 at 10:16 AM.
Thread Starter
Intermediate
Joined: Mar 2022
Posts: 49
Likes: 5
From: Lake Grove NY , Long Island
Unfortunately i really have no way of knowing if its original i want to say no , but thank you for that link !!!! what an amazing place !!!!! wish i had this place when i used to do side work in my garage could have saved tons of time and $$$$$ for sure ,. im putting my order together now , and thanks "ihatebarkingdogs " for the tips im gonna replace most of the stuff i know the bearings are NG they have a nice growl to them : ) , but thank you again for the link and the tips !!!! this is The Only Forum that i go too
,. im putting my order together now , and thanks "ihatebarkingdogs " for the tips im gonna replace most of the stuff i know the bearings are NG they have a nice growl to them : ) , but thank you again for the link and the tips !!!! this is The Only Forum that i go too
Team Owner
Joined: Sep 2003
Posts: 25,361
Likes: 2,729
Unfortunately i really have no way of knowing if its original i want to say no , but thank you for that link !!!! what an amazing place !!!!! wish i had this place when i used to do side work in my garage could have saved tons of time and $$$$$ for sure ,. im putting my order together now , and thanks "ihatebarkingdogs " for the tips im gonna replace most of the stuff i know the bearings are NG they have a nice growl to them : ) , but thank you again for the link and the tips !!!! this is The Only Forum that i go too
,. im putting my order together now , and thanks "ihatebarkingdogs " for the tips im gonna replace most of the stuff i know the bearings are NG they have a nice growl to them : ) , but thank you again for the link and the tips !!!! this is The Only Forum that i go toohttps://www.corvetteforum.com/forums...1105585-a.html
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