69' 340, 71' rad, what else?

What about the 70 & later timing chain cover. The timing marks are 90° off of the pre 70's style. Also get the harmonic balancer so the timing marks are compatible. If the pulleys bolt up to the balancer, you can reuse the old ones. Some had symmetrical and some nonsymmetrical bolt patterns for crank pulley to the vibration damper. The 70 & later timing chain covers moved the water outlet to the opposite side for the lower radiator hose.

You kinda have to use them as a set: Timing chain cover, water pump, vibration damper. The pre 70's are 90° off of the post 70's. Sometimes the pulleys will go on both.