I needed to do front engine work, pulley's and belts, so I decided to replace the water pump since I was in there. I expected a big ol 12 bolt pump like on the 460, but was very happy to see it's only a 4 bolt unit easily held in one hand. No gasket, just an o ring. Grease the o ring, stick it in, tighten the 4 bolts your done. The hardest part of the job is busting loose that inch and 7/8 fan bolt. I got a loaner wrench that size from Autozone that works good, but holding the pulley from turning required a visit to youtube where there we're several good ideas. Buy a small beam clamp. Clamp it to the pulley, then when it contacts the block it holds firm so you can tap the wrench to undo that bolt. If any of you want to tackle it, it's much better than the old 460 water pumps.
Retired Anesthetist. LTP. Pilot with mechanic/inspection ratings. Between rigs right now.. Wife and daughter. Four cats which we must obey.