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fuel pumps mech vs. elec?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by keeferk5, Nov 20, 2001.

  1. keeferk5

    keeferk5 Registered Member

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    I have an 85 k5 w/ 4bbl 350 and am thinking about replacing the stock fuel pump to match my new carb, which should I look at, a better mech. pump or an in-line elect and why.

    My hotrod goes anywhere I want it to.
     
  2. four_by_ken

    four_by_ken 1/2 ton status

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    Why was this posted here? Mistake?

    Ken H.

    '86 K5 up and coming
    14 bolt(Detroited),10 bolt,39.5 Boggers rear,
    TSLs front, 468 BBC, 350 trans, 205 transfer
    Rust free in Michigan!
     
  3. sosamantx

    sosamantx 1/2 ton status

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    they both have their pro's and cons?? but, i'd prefer a electric fuel pump. you probably don't have to worry to much about fuel getting too hot in a blazer (mechanical), running next to the exhaust, but it would be cooler with an electrical, depending on how you routed the lines in the engine bay. if you just get a generic fuel pump mounted close to the tank it should be no problem, you just have to run power to it. you could also put an inline toggle switch (hidden?) to the pump so you could turn it off and on when you want. helps when you just need to bump the motor over and not start it.

    <font color=blue>Steve Sosa a.k.a. "sosaman"</font color=blue>
    <a target="_blank" href=http://sosaman.home.texas.net/carpics.html>http://sosaman.home.texas.net/carpics.html</a>
     
  4. KRAZIE87K5

    KRAZIE87K5 1/2 ton status

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    The switch for the pump also works as a greaet theft-deturrent device too! [​IMG] Why would you steal a truck that can't even get you out of the driveway? Ever missing your truck, just look around the corner! [​IMG]

    That is the main reason I chose electrical vs mechanical. Check out Summit's <a target="_blank" href=http://store.summitracing.com/product.asp?d=18&amp;s=112&amp;p=3786&amp;SearchType=ECat>new electric pump.</a>

    You will also have to purchase a <a target="_blank" href=http://store.summitracing.com/product.asp?d=18&amp;s=111&amp;p=725&amp;SearchType=ECat>regulator...</a>

    Good luck making your decision!

    <font color=red>GOT MUD???</font color=red>
    My license plate reads:<font color=blue> 8 YR SUV</font color=blue>
    <a target="_blank" href=http://24.10.209.54/bigolk5.htm>http://24.10.209.54/bigolk5.htm</a>
    454/TH400/NP205 - 14BFF/D60/w/ 4.10s
     
  5. BurbinOR

    BurbinOR 3/4 ton status

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    First, if your current pump is working, why replace it?

    With a non-FI truck (as your's is) I'd stay mechanical for the simplicity of it. More reliable, if you want, just get a spare and keep it in the truck, can change it in minutes.

    <font color=blue>'79 ONE TON TPI K5 - See it at---&gt;<a target="_blank" href=http://www.blazzinor.rockcrawler.com>www.blazzinor.rockcrawler.com</a>
     
  6. DesertDueler

    DesertDueler 1/2 ton status

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    Elec. Pump. Much easier to change out, no gaskets to have to scrap off and no busted knuckles from trying to get them off since the air pump is in the way. Also if you run it out of gas all you need to do is put gas in the tank, turn the key in the on position for a minute and crank the key and it will start right up. No need to crank and crank til the fuel works its way up to the pump.

    86Jimmy 4"&35"MTRs,87 burb 4"&35"MT,69Firebird w/525 hp,and 70GTO live in PHX,AZ<a target="_blank" href=http://www.geocities.com/modifierperformance>My vehicles</a>
     

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