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

    Heater Box Mod \ Ac Delete

    Myloth
    Myloth
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    Join date : 2014-06-09
    Location : At the base of the Mountain (NY) Adirondacks

    Heater Box Mod \ Ac Delete Empty Heater Box Mod Ac Delete

    Post  Myloth Wed Mar 28, 2018 12:43 pm

    Finally got around to doing some slicing of my heater box. I put a metal panel in front to mount the MSD box.

    Which BTW MSD vs HEi (HEI with 50k coil and performance module )no contest MSD wins. In the past if I had

    vacuum leak motor shook awful I had 2 hoses off by accident and motor had slight stutter with MSD. Much

    stronger at idle and throttle response is wicked. I hadn't run an MSD box in years I was quite surprised at difference.

    Anyway here are pics of the finished product.

    Heater Box Mod \ Ac Delete Dsc01911

    Heater Box Mod \ Ac Delete Dsc01913

    Heater Box Mod \ Ac Delete Dsc01912
    avatar
    atc250r
    Newbie (Tier 1)
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    Join date : 2018-03-16

    Heater Box Mod \ Ac Delete Empty Re: Heater Box Mod \ Ac Delete

    Post  atc250r Thu Mar 29, 2018 7:53 pm

    Looks good. My only concern would be the heat off the exhaust taking out the MSD box. I've had several over the years in various cars and the only one that didn't eventually crap out was the one I mounted under the dash of my 69 Nova. Wink
    Myloth
    Myloth
    Moderator
    Moderator
    Helpful and Responsive Member!
    Very active with responding and helping other members with questions and concerns.
    10th Year Anniversary
    10 years of being a member on our forum!


    Posts : 638
    Join date : 2014-06-09
    Location : At the base of the Mountain (NY) Adirondacks

    Heater Box Mod \ Ac Delete Empty Re: Heater Box Mod \ Ac Delete

    Post  Myloth Fri Mar 30, 2018 6:34 pm

    Thanks(Now I just need to clean up my wiring.).

    True about the location but where it sits doesn't get too hot under my hood . I barely crack 190F cruising

    and nothing under the hood gets really hot except the radiator hoses .

    However I am contemplating a heat shield just in case.

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