MC3IK Spacer Hardware Kit

This kit has the additional hardware necessary to use when your engine has a 3" or 6" reser block between the exhaust manifold and exhaust elbow on a MerCruiser Full Closed Cooling System conversion kit by San Juan or Seakamp Engineering. Order this kit with your cooling system if your engine already has the 3" or 6" riser blocks. Use with Kit part # MC303, MC311, MC314, MC318, MC321, MC322, MC324, MC326, MC330, MC332, MC337, MC339, and MC341.