I'm doing a full boat swap/update with my Comanche, so I wont need this. Mileage unknown ( more than 160k definitely). Brand new clutch and pilot bearing, 231 shifts fine but the linkage is rusty and sticky. Engine has had recent oil change and full tune up, and for what its worth runs way stronger than i expected. No smoke at all. Also recently had plastic valve cover replaced with the metal one. Trans also shifts perfect. No reasonable offer refused.