Hi, I'm in the procees of replacing the L6 Engine in my 70 Malibu with a ZZ4.
Pulley's for water pump and crankshaft were different...but what about Power Steering ?
My original (6cyl) pulley is 5 3/4"
I have another slightly more modern pump...that has a 6 1/4" pulley.
Confused over what to use.... :cool:
Can anyone put me straight please...;)

I would assume the pumps for a 6 and a sbc are the same. I would throw on your original.