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Engine Casting Numbers

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by TheGeneral, May 29, 2002.

  1. TheGeneral

    TheGeneral 1/2 ton status

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    Buying a 454 and have a few numbers to reference on block. The block casting number is 361959 which shows it to be a 73-85 454. The intake casting number is 364740. Can anyone tell me if oval or retangular ports for heads for engine. Thanks for any help.
     
  2. HarryH3

    HarryH3 1 ton status Author

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    May 31, 2000
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    Georgetown, TX

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