GM B-Body Forum, 77-79 Caprice/Impala Forum

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GM B-Body Forum, 77-79 Caprice/Impala Forum

Join Now If Your A 1977- 1979 Caprice or Impala owner or other GM B-Body owner!!!
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GM B-Body Forum, 77-79 Caprice/Impala Forum

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GM B-Body Forum, 77-79 Caprice/Impala Forum

A forum for the owners and enthusiasts of General Motors B-Bodies from 1977-1990, but dedicated to the owners of 1977-1979 Impalas and Caprices. Join up now!


2 posters

    Alternator interchangability

    383Falcon
    383Falcon
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    Alternator interchangability Empty Alternator interchangability

    Post  383Falcon Wed Nov 12, 2014 1:57 pm

    Hi everyone, I was just curious if the 4 pin alternator out of a 93 caprice sedan would fit the mounting bracket for a 4 pin on a 1990 sedan? Thanks, I'm looking to switch out the connection types for the battery wire. As is, I had to cut off a portion of the stud in the back to get it to fit and I thnk that the close proximity to my valve covers killed the last one.. Thanks!
    GM B-Body Forum
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    Alternator interchangability Empty Re: Alternator interchangability

    Post  GM B-Body Forum Thu Nov 13, 2014 7:16 pm

    Maybe and maybe not, the bolt hole locations are a tad different, but thats just from looking at pics. Looks like they are all 100 amps and above which is good if youve got some electronics.
    383Falcon
    383Falcon
    Active Member (Tier 2)
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    Alternator interchangability Empty Re: Alternator interchangability

    Post  383Falcon Fri Nov 14, 2014 2:26 pm

    Nice thanks! I found this cheap Chinese knock off 120amp that says it fits these various vehicles, the add is very explicit about fitmit gaurantee. Lol I just need a cheap 4pin until I change my mounting brackets and completely ex-out the old EGR and AC pullys. Also, from what I found, 90's box interchange with up to 93 B bodies. :]

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