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Compression

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 90K5, Aug 16, 2000.

  1. 90K5

    90K5 1/2 ton status

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    Does anyone know what compression my 350 came with from the factory. I am thinking about getting a compression tester that you put in the spark plug hole to test it. Wouldn't this be for the engine to run on 7 cylinders though? Thanks

    90K5
     
  2. DMK

    DMK 1/2 ton status

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    If you mean comp.ratio it is 9.3 to 1. A compression tester won't give you compression ratio.
     
  3. 6.2 man

    6.2 man 1/2 ton status Premium Member

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    Also you don't run the engine with tester in the hole . Just turn it over 3 or 4 cycles .
     

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