I usually have trouble with the engine room on sport-fishing boats under 65 feet because I'm pretty large. The Davis 58 accommodates me surprisingly well with a wider walkway between engines, and I could almost stand up straight. I even had room to climb outboard of both engines, so all routine maintenance should be a cinch to accomplish.
The engine-room systems have been regionalized. You'll find the twin generators on the aft bulkhead, most of the plumbing to port, the air conditioning and water makers on the forward bulkhead and the wiring to starboard.
Under way, the twin V-12 Caterpillar 3412s, rated at 1,300 hp each, seemed unusually quiet - even though this boat has no more soundproofing than others - except for the particularly noticeable noise of the turbo whistle.