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At the very least it would require a 3 phase variable frequency drive.
Then you would have to hack the alternator apart kind of like I did for my schotty diode alternator mod. Then any efficiency gained by going 3 phase would be wasted by having to magnetize the rotor. The only time I have seen 3 phase motors with externally magnetized rotors is very specific applications where the rotor had to be locked unison with the frequency driving it because for that application there had to be 0 rotor slip. The only time I ever saw motors like this was on old school rotary frequency converters that converted 50Hz power to 400Hz power.
The VFD alone would cost at least as much as 1 or 2 of very expensive Meziere coolant pumps.
Your best options for going to electric coolant pump are find an electric motor like Daox to drive the coolant pump or find a universal fit already made electric coolant pump kind of like what I did.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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