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Rebuilding Block

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by grindkings, Dec 27, 2004.

  1. grindkings

    grindkings 1/2 ton status

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    Hey, new here, but I'm planning on rebuild a 350. Its got a one piece rearmain seal. But my question is, does it matter what year it is? Are all the build kits just determined my the rear main?
     
  2. Burt4x4

    Burt4x4 3/4 ton status

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    Ya that is how I understand it. But to be sure ge the casting number off the block and look it up for the year/years it was used and buy for thoes years for all your parts:D

    Good Luck and Welcome:xmas:
     
  3. grindkings

    grindkings 1/2 ton status

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    Thanks buddy, where can i find the casting numbers and where is a good resourse to look them up?
     
  4. big83chevy4x4

    big83chevy4x4 3/4 ton status

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    go to www.mortec.com, they have the best casting numbers.

    the casting numbers are on the back near where the bellhousing bolts up on the driver side
     
  5. dyeager535

    dyeager535 1 ton status Premium Member

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    One piece rear main, check to see if its setup for a roller cam. MOST come pretty much ready to bolt that stuff in, and it's a cheap way to go if you want to make a bit more power.

    Just something to consider if you haven't got cam stuff yet.
     
  6. K1Orion

    K1Orion 1/2 ton status

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    Are you just gonna put in new gaskets?
    Or do you plan to put in bearings, rings, pistons, rods, oil pump, and gaskets?

    If its gonna be more than just new gaskets I would suggest getting the minimum of machine work done first. Just ask the machine shop what you got and what you need. They will be able to steer you in the right direction. You will end up with a better motor. Ask me how I know.
     
  7. grindkings

    grindkings 1/2 ton status

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    How do you know?
     

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