Okay, moved the motor closer to the radiator by 1" and I have plenty of clearance to use the F-body accessories minus the a/c without cutting anything. See Street and Performance's website for the general design and be sure that the bottom front ls1 engine mount bolt is the one you use to locate the original three bolt engine mount in earlier style engines. Appearantly you have to move the motor for clearance or pay through the nose for relocation brackets for the accessories. The engine/transmission mating point is 1" forward from the original location but it shouldn't hurt the front to rear balance too much since I plan on moving the fuel tank to where the spare tire is mounted.