If anyone plans on doing an LS/vortec swap, stay away from anything with Displacement on demand unless you intend to keep it active in your cruiser... It's going to cost me another $700 bucks to delete this from my motor. Texas Speed makes a kit for the delete including everything you need other than the PCM flash/tune, on a side note the kit I'm getting comes with a new cam, in the LS9 flavor...