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383 & a stock TH700?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by meatloafK5, Feb 10, 2002.

  1. meatloafK5

    meatloafK5 Registered Member

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    Ok....one of the next projects on the Rust Monster, will be an engine swap. I was thinking of getting a 383 so that I can pull, tow, and offroad if I want to. The 305 that it came with is just about useless for anything I plan to do in the future, so I don't want to rebuild it. I even have the wife talked into a new Crate motor! My dumb question of the day.....will a 383 Crate hook up and fit/work well with a stock R700? My transmission is working great so far, and I would like to keep it. Thanks everyone!

    ...who knew working on a Blazer would be this addictive!


    84 K5 Blazer 305 with lots of rust.
     
  2. Hossbaby50

    Hossbaby50 3/4 ton status

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    Re: 383 & a stock R700?

    You will need a new flywheel for the 383. I did when I went to a 350 from a 305. Your 700R will hold up to a 383, but for how long I don't know. If you have a gentle foot, and a BIG tranny cooler it might last awhile.

    My Chevy isn't broken, its just out of gas.
     
  3. CaptCrunch

    CaptCrunch 1/2 ton status

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    Re: 383 & a stock R700?

    Depends on power of the 383...what year 700 is it? Later models are a bit stronger and better sorted out. Also depends what shape it is in.

    -Mikey
    1987 Chevy K5 Blazer- 350 TBI
    <a target="_blank" href=http://coloradok5.com/gallery/captcrunch>http://coloradok5.com/gallery/captcrunch</a>
     
  4. meatloafK5

    meatloafK5 Registered Member

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    Re: 383 & a stock R700?

    Hey thanks guys!, I have an '84 with a stock TH700. Sorry I was not clear. So far it's in pretty good shape, but it might need an overhaul for seal and such. I was looking at LMC for the flywheel, and they seem to have a bunch. Thanks!

    ...who knew working on a Blazer would be this addictive!


    84 K5 Blazer 305 with lots of rust.
     
  5. 89GMCSuburban

    89GMCSuburban 1/2 ton status

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    Re: 383 & a stock R700?

    I had a friend with am 84 Suburban with a 383 and a stock 700, it was built, cam had over .500 of lift. Tranny lasted OK without a cooler, but then again that Suburban had enough power to smoke those tires forever. One thing I'd recommend is find a later model 700, like an 89-91 model or get a TCI racing 700 tranny. They're about $1,100, but worth the cash. If you must keep your current tranny, get an extra deep tranny pan and a large cooler. Even with this, the life of it depends on how you use the go pedal. More pedal, less life.

    Red 1989 GMC Suburban SLE V1500 - TBI 350, 700R4 w/ shift kit, Quad-shock front, 31/10.50/15 Pro Comp MT, 4.10 gears, Duals off cat
     

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