* Check a parts catalog: Use a reputable online parts catalog (like RockAuto, Summit Racing, or others) and enter your vehicle's year, make, model, and engine. They'll show you the correct water pump for your specific car.
* Look up the part number: If you have the original water pump or its remnants, look for a part number cast into the metal. This will help you find an exact replacement.
* Consult a repair manual: A Haynes or Chilton repair manual for your 1967 Chevy Caprice will usually have diagrams and specifications, including the water pump.
* Visit a local auto parts store: Bring your vehicle information (year, make, model, and engine size) to a local auto parts store. They can look it up in their system and order the correct part for you.
Without knowing the engine size, it's impossible to give you a specific water pump recommendation. Providing the engine size will allow for a more accurate and helpful answer.