I have been doing a crap load of research on this for a long time now, and according to GM parts the LNF cobalt & LNF HHR share the same crank pulley. Which is great since the LNF cobalt shares the same 5 ribbed design as the L61 / LE5 ecotec engines found in TONS of gms and HHR's. If anyone could get me a pic that would be great....or confirm that the LNF HHR crank pulley is the same as a L61/LE5 crank pulley.

Well no need for a pic. Went to the local dealer. The LNF SS Balt & LNF SS HHR both share the same crank pulley, which happens to be the same as the L61/LE5 crank pulley.

I'm a happy guy. :thumb: