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metalmonkey47

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metalmonkey47 last won the day on April 17 2022

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About metalmonkey47

  • Birthday 06/11/1991

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    http://ratsun.net

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    Atlanta, GA
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    '19 Corvette Z06, '12 Xterra Pro-4X, another '12 Xterra Pro-4X, '13 Triumph Daytona
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    Datsuns

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  1. A87 head is stock on L18 correct?

    1. Show previous comments  2 more
    2. datsunaholic

      datsunaholic

      Of course you won't know if it's open or closed chamber until you take the head off. US-spec ones were open.

    3. metalmonkey47

      metalmonkey47

      Any performance difference between open chamber a87 vs u67?

    4. datsunaholic

      datsunaholic

      U67 has bigger intake ports and exhaust valves may or may not be bigger. A87 would have snappier low-end response, but run out or air faster at higher RPMs.

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