The main issue with putting a roller cam in a SL6 is finding a steel camshaft to grind the roller profile onto. Cast iron cams do not hold-up to the spring pressures and load that roller lifters put on the cam lobes.

The lifters are the same diameter as any Mopar V8 but the anti-rotation bars have to be custom made to fit the SL6 spacing.
You also need a cam stop in the front t. cover to keep the cam from walking forward.
The nylon dist. gear works fine on the steel cam. The bronze oil pump drive gear also works great.
DD