SB Pulley Diameter

[Sky65]

What are the stock crank and water pump pulley diameters for a small block? Thanks.

 

[G Winter]

If I am not mistaken the the GM pulley diamieters have varied over the yrs and with diff configurations of the engine. As far as vettes in paticular I can't say it they stayed the same.
Glenn

 

[Sky65]

If I am not mistaken the the GM pulley diamieters have varied over the yrs and with diff configurations of the engine. As far as vettes in paticular I can't say it they stayed the same.
Glenn

Thanks. I should have figured that. I have a 69 350 in the 65. I want to change over to aluminum pulleys but are many differant ones. I guess I would like to know which ones to use for the 65. I am not interested in the overdrive/underdrive stuff. I want some that will work correctly.