I HAVE A 1989 BAYLINER 120 HP IN LINE 4 CYL L DRIVE THAT THE POWER HEAD NEEDS REPLACING. CAN ANYONE OUT THER TELL ME IF I CAN USE ANY OUTBOARD MOTOR 120 HP THRU 150 HP MERC FORCE NEWER THAN A 1989 AND JUST USE THE POWER HEAD. IS THIS POSSIBLE. I HAVE A GOOD CONDITION LOWER UNIT. RAN STRAIGHT...