The 12.1-liter in-line-6 D-12 700 weighs 3,461 pounds-heavy, to be sure, but that bulk is representative of its solid construction. That sturdiness also contributes to noise reduction. It has a 5.16" bore-by-5.91" stroke, 740.2 cid, and a 1.65:1 compression ratio. The six direct injectors are controlled by the EDC so that the most efficient fuel-air mixture is provided to each cylinder throughout the rpm range. The D-12 700 has turbochargers, aftercoolers, and a self-contained freshwater cooling system, which reduces the corrosion associated with raw-water cooling. As with pretty much every new diesel on the market, the D-12 700 is IMO compliant, meaning it meets all the latest emissions standards, making it a lot healthier to stand in the cockpit. Plus it's much more fuel efficient than the big blocks of the past, further increasing your cruising range. Contact Volvo Penta at 757/436-2800, www.volvo.com.