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Longer water pump?

Discussion in 'The Garage' started by jerry303, May 28, 2004.

  1. jerry303

    jerry303 Registered Member

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    I am finally getting around to putting my first gen back together and I got to the water pump, got the first one all mounted up and the bracket which mounts to the alt and water pump has a large space now...i might be able to use it but i would have to use some type of spacer which seems like a bad idea. i then called up the parts store and they told me they had "another one" and i took the first one back and got the other one, and though it looks much more like the pump that i took out the space still exists. The first one I got was part number c1301270 and the second one c1301250. i can provide any pics if it would be helpful...thanks, jerry
     
  2. 1979jimmy350

    1979jimmy350 1/2 ton status

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    is it the stock engine because later small blocks use a different water pump
     
  3. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    I know exactly what you're talking about. some pumps are made with the correct offset for your bracket and others are made differently and need a spacer that is about 3/4" long or so between the pump and bracket. The pump usually comes with the new spacer.
     
  4. jerry303

    jerry303 Registered Member

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    The engine itself is a goodwrench, but the bracket was from I believe a 76 3/4 ton.
     
  5. Triaged

    Triaged 1/2 ton status

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    1st gens came with short water pumps. So you are using a crate engine with long water pump and 76 brackets?
     
  6. jerry303

    jerry303 Registered Member

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    Yes, as far as I know. I did not do the first engine swap, so I cannot be sure what truck that the engine and other drivetrain parts came out of, it was 3/4 ton and he said 76 but he might be wrong.
     
  7. jerry303

    jerry303 Registered Member

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    What year should I get the water pump from?
     
  8. jerry303

    jerry303 Registered Member

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    Help me get this thing one step closer to being on the road! and off the road too
     

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