Is this a 440 69 A/C & PS crank pulley?

[bobfist]

[A383Wing]

it's defiantly later than 66 because all the mount holes are evenly spaced....can't tell ya if it's AC or not....can't see the belt grooves

Bryan

[bobfist]

Ah ok, im not sure bec of the small hole
It has no casting number at all

[A383Wing]

4 groove pulley....for A/C, alt, & P/S.....I don't think mine have any number on them either...plus all of mine have that little hole as well

Bryan

[bobfist]

Ah great!
Maybe i can use this then, the water pump pulley had FORD stamp so i guess i change it

Why did some of them have that small hole?

[Cooter]

Ah great!
Maybe i can use this then, the water pump pulley had FORD stamp so i guess i change it

Why did some of them have that small hole?

Some, not all, had a line up dowl in the balancer. Therefore, the small hole. PS, did you know Small Block crank pulleys will interchange with BB? I didn't until I tried a set just to see, but they do. You might even have a small block pulley there.

[bobfist]

Ok, but using SB pulleys won't damage the engine? Im thinking of balance of the pulleys?
My engine has been balanced extremely accurately by a MMR Sweden more than necessary but it was what i wanted
So my question now are: If i use or buy the A/C PS pulleys and don't have the AC pump yet, will i destroy something (balance)
I also seen pulleys with balance weights on it, witch car used those?