Anyone see a water pump pulley like this

[1-PU70]

Anyone see a water pump pulley like this. Thats about a 1/2" between grooves.

[TrailerTrash]

i have one like that in a random old vehicle parts box. along with a water pump pulley that is double groove and about twice as big around.

if im not mistaken the one like yours is from an oldsmobile engine. but i could be way off

[ray_mcavoy]

Seems like I remember seeing water pump pulleys like that (grooves spaced about 1/2" apart) on some of the later 70's Chevy inline-sixes.

[Dead Parrot]

A guess but could it be for a vehicle ordered with AC and manual steering?

[1-PU70]

TrailerTrash could you post me a pic of the one u have and does it have a part# on it.

[TrailerTrash]

ill try to dig it out this weekend and snap some pics

[TrailerTrash]

ok so i remember the large pulley being very large and while larger than a regular one its not twice as large lol nor is it double grooved. i aint seen it in a few years

its on the left next to a regular one



heres mine thats spaced out


and here is the on on my 78 parts truck.


i had walked passed on the way to my parts bin and just happened to look down and notice the pulley(no fenders) so im guessing its an inline 6 thing with the spacing. but the one on the truck is bigger than the one that isnt. about the same difference as the 2 in the first pic