With their gear-reduction drives, heavy-duty Powermaster PowerMax starters really crank out the power--160 ft.-lbs. of torque. So, they can handle engines with moderate compression ratios. If your stock starter clears your oil pan, the Powermaster PowerMax starters will, too. Some will also clear kicked-out pans. Powermaster PowerMax starters can be mounted in multiple orientations, featuring the new infini-clock mounting system. Starter dyno reports are included.