The original water pumps had bakelite (early type of plastic) impellers.
What you probably have here is a genuine Honda replacement pump.
The metal impellers are an improvement over the bakelite, I M H O
Ask if a microdisectomy can be done instead in your situation.
I chose a Nurosurgeon over the orthopedic surgeon.
Because choosing a microdiscetomy.
Gives one the ability to still BEND.
Fusing removes that option forever.
Mounted mine where handle bars bolted on
The instrument panel on my 1973, 750 Triumph Tiger.
Was much less crouded, & fit into the empty middle space nicely.
Ran a small plastic line on mine, easy to fit, & cheap
Interesting concept, just never considered a trike.
Not with two wheels in the rear anyway
Way too much hardware to buy & change.
But two wleels in front, made more sense.
But for a rear wheel trike, this is a great idea.
Good Luck with your sale
Funny how you started playing with Corvett's.
While i have a couple Jaguar XJ8's to play with.
They are both the early almost all aluminum cars, 04,& 07.
Back when Ford still owned Jaguar, Land Rover.
Also many of the other European auto brands.
Both needed suspension work, typical.
Both under...