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3400 heads

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  • 3400 heads

    What are the serial numbers on the 2000 and newer heads. Just want to make sure I have the correct ones. The intakes are 1.75 and the exhaust ports are D shape both should be signs of the newer head. any info would be helpful

  • #2
    1.76" intake is the newer type. 170 and 487 are the last 3 numbers.
    Ben
    60DegreeV6.com
    WOT-Tech.com

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    • #3
      thanks

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