Reference pics and help needed for 69 340

here is a factory cast water pump non-air set-up on my 67 318. the pulley is 2 3/4 deep. the double groove non-air crank pulley is the same for all our small blocks with the exception of the 2 offset balancer holes of which years im not sure of, but they will work with a little modifying of the holes if necessary. the cast aluminum water pump takes a 3" deep non-air pulley (bottom pic) to match the same crank pulley.

all small block and big block double groove crank pulleys are the same with the 2 offset holes being the only difference.

A/C pulleys are a whole different size and set up. generally the top pulley is smaller having one or two grooves and the crank pulley having 3 or 4 grooves all being the same sizes