Check out the 'Did the aftermarket quit on us' thread on this forum. In short, there isn't much aftermarket anything for the 6.2L, at least not yet. To be honest I don't think we will ever see much because outside of the Raptor, the 6.2L is a 'truck', not a performance engine. Your idea of stuffing a late model performance drivetrain in an early Lightning is interesting. If I was going to do something like that, I think I would look at a 5.0L Coyote, not the 6.2L. Good luck!