The LS2/LS7 run the 58x reluctor ring where as LS1/LS6 run a 24x reluctor ring. I got everything out of the ZO6, LS7, ECU, Harness, 02 sensers every thing. Worked out cheaper anyway. The LS7 is only differnt to the LS2 because of how the
oil tank is set up. You can get Y body gear as well. My loom was $325us and ECU $190us. Pedal $42us connector $55us. Half the price of Holden.