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New eng. or fix the old?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by rh88k5, Mar 9, 2003.

  1. rh88k5

    rh88k5 Registered Member

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    I thought I sucked an intake gasket, but after changing gaskets it still is leaking coolant internally. Should I have the heads serviced, replace cam,and do a few extras while Im at it,or buy a replacement engine? My engine has 150k on it, still has good compression and oil pressure, or should I have a shop do the repair so I wont have to bust my butt in my driveway afterwork?
     
  2. TOOLMAN125

    TOOLMAN125 Registered Member

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    what Vehicle,engine?
     
  3. Z3PR

    Z3PR Banned

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    It all boils down too how much money you can spend on it. If the block is good, for the price of a crate motor, you could build that one into a monster !!!!! New hi-pro heads, cam, intake manifold, (rebuild the lower end, even stroke it) all for less then a crate motor aslong as you can do some of the wrench turning yourself. Biggest plus factor is you decide what parts go in it !!!!!
     
  4. RustBuket

    RustBuket 1/2 ton status

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    I'd do the wrenching myself. Just take your time and do it right with quality parts.
     
  5. JohnnyFresno

    JohnnyFresno 1/2 ton status

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  6. dyeager535

    dyeager535 1 ton status Premium Member

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    Leaking coolant internally could be a cracked block (cylinder wall) or the head of course...

    Really depends what you want to do with the/a motor. Do you want to build up a 2 piece hydraulic flat tappet motor, or do you want a roller cam, 1 piece rear main, different heads, and so on?

    Putting stuff together yourself can save *some* money, but if you don't have a block to start with, you have the option of either going with a short block, long block, or one of your own...but a short or long block will probably save you some time if your machine shops are like the ones around here /forums/images/graemlins/smile.gif

    If you just want a stock rebuild, go find a $50 complete motor that needs a rebuild, and rebuild it, stock. But if you are planning on really building it, or MIGHT get the idea too, be realistic, and start out with a good base block. If you want a roller cam, buy a newer motor.

    If you just want a base rebuild, do just that. You'll nickel and dime yourself to death though should you start out building a stock motor, and then change your mind halfway through.
     
  7. 4DiggerDan

    4DiggerDan 1/2 ton status

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    I love you guys.... And I'm sure your local engine machine shop does too. It brings a tear to my eye to hear people say "build the one you got." and "Don't buy a crate."

    All is true though. A local mechanic just bought a ZZ4 for the price of 4400 bucks. He could of had us build him a roller cam 383 on a late one piece rear main block for the same dough with anything Dart or World makes for heads, AND... Had a MUCH healthier engine. You ain't seen a "torque curve" until you've seen what a roller cam 383 can do with good heads /forums/images/graemlins/grin.gif
     

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