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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: Aug 2005 Posts: 277 'Bolter | | 'Bolter Joined: Aug 2005 Posts: 277 | What is the difference between a 39-40 216 wide pulley water pump and a 41-55 water pump. The coolant output appears to be at a different angle, otherwise they appear to be the same and interchangeable. Am I missing something? | | | | | Joined: Apr 2007 Posts: 1,038 'Bolter | | 'Bolter Joined: Apr 2007 Posts: 1,038 | Don,
I believe they are not interchangeable. 1937-1940 blocks have a single hole for the pump, later 216s have two holes.
Kent | | |
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