Clay .......

It has a big effect ....on the water pump pulley because it is now a 4.5" water pump
68 is a 4" ...totally different pulley

are you needing ac pulleys still correct ??

I have the crank ac pulleys larger than non ac ... a very nice low mile original ..complete 69 ac power steering pump assembly.. large pulley
and
I should have an ac 69 waterpump pulley ..... thought I saw one when I was pulling a 68 ac set up out for you

heres the 68 crank pulleys

and the pump on the left is the ac pump ....

Scott
2o6 4659165