Brand new no exchange needed high performance reverse rotation (CCW) Uses 2 bolts and fits MerCruiser and many other big block 454-572 cu. in. Chev applications. AAA MARINE COVERS THE SHIPPING, HANDLING AND INSURANCE TO YOUR DOOR! This is the high performance version and most powerful starter we offer. Fits 14" flywheels. Also replaces Arco 30122, 30123 and 30455.