Dont go anywere near a 6.5 Chev. They would have to be the worst engine I have ever had. Towed 3500kg fully inclosed car trailer to SharkBay mid July at 108kph in overdrive uphills and down didnt matter. Speed didnt drop, Water temps never moved from 1/4 on the gauge. Used 90 liters from Mandurah to 440 road house Drumins Cove Geralton. Just the best coversion i have done. Torque is unreal.