This is a complete engine rebuild kit for a 1991 to 2005 Mercury Marine or Mariner 2.5 Liter Carb & EFI V6 2-stroke outboard powerhead.
 
Includes our recommended pistons (but preferences are also available), high performance rings, high rpm bearings, and gaskets as pictured.
 
Choose:
1) standard bore, 2) .015 overbore or, 3) .030 overbore
1) gasket heads (generally 1991-1999 models), or 2) o-ring heads (most 2000-2005 models)
 
Please contact mike@buckshotracing77.com  or +1-714-697-1716 to walk through your rebuild and best options for you.