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  1. Internal engine modifications?

    Challenger Performance Mods - Engine - SXT - 3.6L
    Hello everyone, I've been wondering if anyone on here has had any success modifying the 3.6 internally? If so what kind of modifications can be done? I'd really love to do some engine mods but don't know what parts from other mopar engines would work in mine. Maybe stroke the motor or swap cams...
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