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Thread: 496 Mag Sepentine Belt Routing

  1. #1
    I have a 496 mag and I have noticed that on some models/years of the 496 the serpentine belt is routed differently. Any ideas, reasons or changes to the engine that Merc has made??

  2. #2
    In 2005 Merc switched to a spring loaded belt tensioner from the previous adjustable style.

  3. #3
    Got It---
    Looks like you have a Whipple on your 496? How much boost are you running and have you found it to be a good value? Are you glad you did it?

  4. #4
    I run 5lbs of boost and I'm very happy with it. I'm probably going to put one on the 8.1 in my truck too. Best bang for the buck and turn-key too.

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