An electric vehicle doesn't need the same horsepower as an internal combustion engine for the same performance; in some modern high-performance electric cars, they get by with about half the rated horsepower of an internal combustion-engined car.
For example:
https://youtu.be/6YuTpPr3Uv0
and:
https://auto.howstuffworks.com/how-d...ctric-cars.htm
"Remember, the Tesla Roadster S is about as fast as a Corvette Z06 with almost half its horsepower."
So I don't think the correct "conversion" (for identical performance) is to swap in an electric motor of the same horsepower.
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Michael B.