The engine is an 0-320E2D.
It was removed from a CA Hwy Patrol C-172 at the first overhaul (1800 hours), pickled, then purchased by the previous builder in Big Bear, CA.
He did not have the old logs.
I recently (3 months ago) had the engine completely rebuilt by an A&P mechanic. He said the inside of the engine was "like new".
The carb needs to be rebuilt, but I could have the A&P do that. I had planned on and EFI system, so I never rebuilt the carb.
The engine is now yellow tagged with a new log book, so it could be installed on a certified airplane. My judgement is it is a very good engine. If I were buying a 0-320 powered airplane, I'd pull the engine and put this one in it (unfortunately, my next plane uses and 0-360).
I put a light weight B&C Starter, B&C Alternator (40A), B&C Spin on oil adapter, and a new mechanical fuel pump on the engine. I have a new Jeff Rose electronic Ignition available too.
I will sell the engine for $10,500 without the EFI or prop extension, but with the carb, starter, alternator and engine mount.