Thinking Of Changing My Crankset

[dwcutrell]

Thinking of swapping out my road bikes crankset from a Shimano Ultegra 6800 compact 50/34 10spd crank to a Shimano Ultegra FC-6600 52/39T 10-Speed Crankset w/ Bottom Bracket... my bike has a BB330 bottom bracket.... so I'm just thinking of swapping out the chainrings from the new set if it will work & keep the cranks as spare parts.

Is this possible?

Thanks...