I have to replace my crankshaft pulley so I am just double checking that I have the correct pulleys on the car right now.. I have:

KE water pump 3 groove pulley
KS crankshaft 3 groove pulley
KA power steering 2 groove pulley

Are these correct? I searched online for awhile with no real luck. Thanks.

 

What year?

 

Its a 71 Cutlass S.. motor is a pre 76 350.

 

Motor doesn't matter. It's all about the water pump and the accessories that you have on it.

 

The water pump number is 412285. Also had a "D6" and an F stamped on it, I believe. Other than that, just the alternator and the power steering. The AC isnt in but I plan on putting it back in, so I wanted it to be the right setup when I do that.. thanks for the help. Much appreciated

 

theres three different olds water pumps, 5, 5.5, and 6 inch the real trick is the right water pump and right pulleys, many times someone changes the WP and has alignment problems after because its the wrong water pump distance.

i cant help as to what combo works but i think if you search past posts for un=octania he has a database that shows pulley and pump combos

 

The 407586 is the correct casting number water pump you need for your 1971. The 412265 pump you have now is a 1973 and later AC water pump. I believe the pulleys you have now are correct for your AC setup, but I am not sure off the top off my head what the pulley codes are.