Dear Mike;
Yes; If you have a 235 thats 55-62.
When GM (Chevrolet) changed the pump, it added more pitch to the fan blade. This fan won't fit when installing this engine in a 37-54 car as It's to close to the radiator.
The adapter plate does move the fan up, but the orginal fan won't fit the later pulley, so you just swap them by pressing on the early one to use the later pump etc.
Patrick's makes them, "ready to go".
We've been doing this in California (hot summers) for years Bryan, 'so not to worry' about air in the water jacket.
Good luck.
