Not a restoration. Just looking for a functional water pump for a 1971 Cutlass 455 with AC.
What is your favorite brand from these Rock Auto Choices below?
Yes, I know we all love Thornton (screenshot also below), but I am looking for something more budget friendly for this particular car.
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The Dayco water pump is the only with a closed impeller. Otherwise weight, some like GMB are aluminum or the best warranty is the way to go.

 

I have a parts store stamped steel open impeller water pump on my car and originally I had some concerns but it had no issues keeping the engine cool in our 110+ summer heat with the AC on.

 

When I last bought a water pump for my '70 Vista it was a china repop. Didn't look right but worked fine- goodnuff for that car, but I did keep the original core which I recommend you do even if you know it is not correct # for your car 'cuz this 55year old stuff isn't that easy to get anymore and only gonna get more scarce...

 

GMB / Milodon aluminum pump (i.e. GMB apparently makes it under both their own name and Milodon) has been my choice - direct fit, great performance.

I doubt Thornton makes their own pump so they may just be selling a rebranded GMB piece stamped with part# markings to Thornton's spec... If that's the case, go with best overall pricing (i.e. check Summit / Jegs as well as Rock Auto, etc.)

 

....1971-72 Oldsmobile F85 442 Cutlass 350 455 Air TEX NOS water pump AW969 231066 | eBay.....

Here is linky to one that may work 4 you...