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distributor?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by meatloafK5, Nov 12, 2001.

  1. meatloafK5

    meatloafK5 Registered Member

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    I am looking to replace my OEM vacuum advance distributor with an MSD 85551(from Summit) mechanical advance. I was wondering if anyone has done this before, and had any positive or negative feedback, and other parts that may be required(besides a coil). I was also wondering if hooking it up electrically will be a nightmare or easy. Any advice will be greatly appreciated. Thanks!

    "stupid people are simply alive because it's illegal to kill them..."

    84 K5 Blazer 305(for now) many mods coming....including a 350
     
  2. Blazer_Boy

    Blazer_Boy 1/2 ton status

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    Ain't nothing wrong with the HEI to be honest, a Blazer isn't a race car. If you want MSD then just swap the stock coil for the MSD and get a 6 series box. They have a wiring kit that just plugs right in. The only creative thing you have to do is find 12v for the box.

    <a target="_blank" href=http://www.geocities.com/bigkern76>http://www.geocities.com/bigkern76</a>
     
  3. meatloafK5

    meatloafK5 Registered Member

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    Thank you for your input. I agree about the HEI, I've just had too many ignition problems lately, and I just want to keep things as simple as possible. I have to look at the MSD coil upgrade and maybe a 6 box. Thanks.

    "stupid people are simply alive because it's illegal to kill them..."

    84 K5 Blazer 305(for now) many mods coming....including a 350
     
  4. Zepplin

    Zepplin 1/2 ton status

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    Thats what I plan on doing. (Minus the distributor) You can either get a new coil from MSD and drop it in the stock HEI location or get a MSD kit that comes with a external coil, a coil cove for the HEI cap and a new coil wire. Then throw in a MSD 6A box and you're all set.

    Summit sells it, the Part number is MSD-8400 runs around $190.

    74 Blazer
    Zepplin
    Check out my Blazer
    <a target="_blank" href=http://community.webshots.com/user/zepplin1976>http://community.webshots.com/user/zepplin1976</a>
     
  5. dyeager535

    dyeager535 1 ton status Premium Member

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    "Keeping it simple" IMO, does not entail adding additional wiring or components that can fail and leave you stranded. Stock HEI, no work, will take you to 100K plus, and has gone much longer, on many peoples vehicles. I'm not saying its for everyone, but replacing everything internally in an HEI distributor that can wear out or fail, with new, leaves you with a very proven distributor setup.

    Dorian
    My tech/links page: <a target="_blank" href=http://www.dorianyeager.com/index2.html>www.dorianyeager.com/index2.html</a>
    Why insist on counting when the ring gear has the tooth counts stamped in?
     

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