IMO, you may need the works with that combo.
Part 1
HD Hi-Flo pump and stat, 7-blade hi-attack all-steel fan, mounted on a THERMOSTATIC clutch, inside a tight-fit shroud. Plus molded hoses; the bottom with an anti-collapse spring, and
Part II
a restricted bypass, and an overdriven fan pulley.
This is what I know for sure works; you might be able to get away with less in Washington, IDK.
But that's a lot of motor to risk.
There is available, a low-profile Hayden clutch, but IDK if it's thermostatically controlled.
