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4.8 / 5.3 /6.0L head swap & bolt pattern

Discussion in 'GM Powertrain' started by 951500, Dec 5, 2009.

  1. 951500

    951500 New Member

  2. DARiggs

    DARiggs New Member

    Did you change out the heads for better performance or problems?
  3. 951500

    951500 New Member

    had problems so replace with a set of stock

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