I think you guys missed the point. It doesn't overheat now. It's just that the mechanical fan is noisy and uses power and fuel full time and I want a de-clutching fan so it doesn't run all the time.
1951 3800 1-ton "Earning its keep from the get-go" In the DITY Gallery 1962 261 (w/cam, Fenton headers, 2 carbs, MSD ign.), SM420 & Brown-Lipe 6231A 3spd aux. trans, stock axles & brakes. Owned since 1971.