Has anybody done a swap from a L86 to a L8T, and have a tune file for it? Personal vehicle, 2015 gmc 1500 with 6.2 and 8 speed transmission, that dropped a valve and L86 are impossible to get currently but can get an L8T next day, and they are significantly cheaper. Was thinking of buying and L8t and swapping camshaft out to a LT5 cam and new Valve springs as I under stand the LT5 cam is basically the same as L86 without AFM.