Water Pump Question for 68 327

[SangerV]

Hi All

Can anyone tell me what the OEM GM part number would be for a water pump for my 68 GMC with an original 327 ? It has an aftermarket pump that has failed and I want to go back with a correct OEM part. Height needs to be 5 9/16". Thanks SangerV

[stsalvage]

Well all you need to tell is i need a short water pump for my 283 - 327.That's it.Part numbers have changed over 500 times.Now its about the part number that the place you buy it from Now if you take a pic of your set up and see witch pulleys your using do you have AC or PS these are the pulleys i use on my short water pump

[stsalvage]

New more pics of hoses you should use

[stsalvage]

Few of the pics are from my 1965 3/4 ton chevy the ones with the orange motor is from my 1972 3/4 ton chevy there to give you some Idea where to go all the pulleys line up the 1965 uses the old style Alt bracket the 1972 uses the one that is easier to work with if you don't have the Hump heads both engine run the small water pump The only Large water pump was used on the Blazers that's the tall water pump

[SangerV]

Thanks for the detailed response !