I have a Pentair pool Pump -Part # 7-177449-03 SN BZ05-24 FR R56Y.   Could I upgrade the motor itself to a higher HP and still fit on the existing housing from my current Pentair Pump?

I have in my cart this. one: Century 3/4 HP Square Flange 56Y Full Rate EE Motor - B2661, but before I purchase with the salt chlorinator kit for the gaskets etc, if the HP upgrade is ok - meaning it will fit on the rest of the 3/4 HP pump body for the bolts, nuts and gaskets, which pump motor should be the right one?