Rebuilding Cat 3306 TA - Help

Possibly looking into purcharsing a Yatch with twin Cat 3306 TA that need a complete rebuild. I am not up on Cats. I have heard comments that this engine is a Dinosaur etc. Candidly, not very useful information so I have come here to get some advice.

These engines are on a 1984 Yacht. I do not have serial number or any other information on them yet.

I would like to know your thought on having these engines rebuilt. Approximate cost if I were to have this done in Florida, are these engines not worth rebuilding per the dinosaur comment?

Your help and advice would be greatly appreciated.

Anyone has a recommendation on a Cat certified diesel mechanic, facility that could do a bang up job in rebuilding these engines?

There's few engines ever designed to be more rebuildable than a 3306. It has wet sleeve liners. It's easy to work on and any seasoned bulldozer or fleet truck mechanic has rebuilt several.
The only complex part of a 3306 rebuild is if the block needs to be cut for counterbores ( a condition caused by liners vibrating and settling into the block). But it's not always required, and if it is, 9 times out of 10, the block can be salvaged by in place machining and inserting.

Parts are readily available including reman cranks and liner packs. Cat dealer is a good place to start for a quote. They can pull up a history of any dealer work done in the past by serial number- they might share valuable info. might be able to tell you if the engines have been rebuilt before.

CAT 3306 is the most engine use here in our country. Very nice to use this engine

very reliable engine if well maintained