I have two LS1 throttle bodies. One is on my 01 Z and the other is off a truck application. They have the same body casting but differ in the passenger side coolant tube shape, spring color/tension, and throttle bell crank size. The truck unit has a three inch across bell crank (throttle cable attachment point) the 01 has a 3 3/4 inch crank. I am assuming you would not get full throttle with the truck unit on the 01 car? Anyone have any info on compatibility ?