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    Results 1 to 7 of 7
    1. #1
      Join Date
      Aug 2004
      Location
      Dunwoody, GA
      Posts
      4,984
      Country Flag: United States

      black plastic on back of LS fbody alt?

      Does anyone know what the purpose of the black plastic piece on the back of an fbody alternator is? It appears to simply be a cover with a drain tube. The LS vette alt is covered but basically opened in the back. I'm thinking that cutting on the plastic of the Fbody one will have no advers affects, but I don't know how alternators work in detail. Thanks

      Trey

      "The early bird may get the worm, but the second mouse gets the cheese."
      ~ Jon Hammond

      1979 WS6 Trans Am stock LT1/T56 drive train out of my Formula. BMW M-parallel rims. C5/C6 brakes

      build thread https://www.pro-touring.com/showthre...ghlight=begins


    2. #2
      Join Date
      Aug 2004
      Location
      San Bernardino, CA
      Posts
      883
      i was thinking it was an air intake to cool the alt. either way i have to trim the back of mine to make it fit on my 69.

    3. #3
      Join Date
      Aug 2004
      Location
      Dunwoody, GA
      Posts
      4,984
      Country Flag: United States
      I'm having a hard time believing it's anything important that can't be cut to make work like you're doing. However, I figured I would ask. Thanks.
      Trey

      "The early bird may get the worm, but the second mouse gets the cheese."
      ~ Jon Hammond

      1979 WS6 Trans Am stock LT1/T56 drive train out of my Formula. BMW M-parallel rims. C5/C6 brakes

      build thread https://www.pro-touring.com/showthre...ghlight=begins

    4. #4
      Join Date
      Aug 2004
      Location
      San Bernardino, CA
      Posts
      883
      just bolted mine up today. im using S&P style plates and energy mounts. no cutting required.

    5. #5
      Join Date
      Aug 2004
      Location
      Dunwoody, GA
      Posts
      4,984
      Country Flag: United States
      I'm dealing with brackets I designed to hold LSx engines in C3 corvettes.
      Trey

      "The early bird may get the worm, but the second mouse gets the cheese."
      ~ Jon Hammond

      1979 WS6 Trans Am stock LT1/T56 drive train out of my Formula. BMW M-parallel rims. C5/C6 brakes

      build thread https://www.pro-touring.com/showthre...ghlight=begins

    6. #6
      Join Date
      Nov 2005
      Location
      Auburn, WA
      Posts
      1,360
      I believe it's for cooling. If it wasn't needed, it wouldn't be there.
      Matt Jones
      Mechanical Engineer
      Art Morrison Enterprises

    7. #7
      Join Date
      Mar 2006
      Location
      OC CA
      Posts
      470
      I had to trim mine to clear subframe too. I just cut away the part (vent?) that protrudes the most. It does leave a gaping hole in the back. No real miles yet, so I don't know if it's gonna be a problem.

      I was looking at the alt. in my 03 truck and noticed it is much more slimline than the F car setup. It looks as if the plastic covers are interchangeable, but still may be a tight fit for me as my motor is set back to the max. I think it may work depending on the particulars.
      Mark
      LS1- T56
      under construction
      "Political Correctness is a doctrine, fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end."




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