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454 exhaust port size ?

Discussion in 'The Garage' started by j250trxr, Apr 23, 2005.

  1. j250trxr

    j250trxr Registered Member

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    i was wondering if someone could tell me what exhaust ports a stock 87 454 tbi has,1.75 square,1.8 round,or 2.25 round. thanks for the help
     
    Last edited: Apr 23, 2005
  2. thor

    thor 1/2 ton status

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    The ports are square, If you're looking at gaskets the round ones are the ones to use for headers
     

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