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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Jun 2004 Posts: 66 Wrench Fetcher | | Wrench Fetcher Joined: Jun 2004 Posts: 66 | I plan on putting a water pump adapter on my '54 1-1/2 ton which will be powered by a '62 235 from a '62 c-10. What is the ideal water pump pulley to harmonic balancer pulley ratio so the water pump isn't spinning too fast or slow? | | | | | Joined: Dec 2003 Posts: 2,733 Shop Shark | | Shop Shark Joined: Dec 2003 Posts: 2,733 | I'd say they are pretty close to one/one judging by whats on my engine. I'll try to measure them and post it here tomorrow. | | | | | Joined: Jul 2007 Posts: 224 'Bolter | | 'Bolter Joined: Jul 2007 Posts: 224 | i used the plate on my 1960 235. i ordered the waterpump with a 3/8
pulley to run the alt. i reused the 5/8 balancer this lets the 3/8 belt ride low and reduce the pump speed. oh it may have been a 1/2
balancer im not sure but it works fine. philip | | |
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