i think you may find gm is dumping the engines into mercruisers lap at or near cost, while they have used fords in the past merc. seems to be inlove with gm. take a look at http://www.gm.com/automotive/gmpower...ngines/vortec/, maybe this web site can help out some are made in mexico!
i drove both before ordering my 05 v10, it out pulls the gm 8.1 , sorry i have to agree for now boat chevy, car or truck FORD . allthou how come most of the ski boats made have ford power? for the inboards