Here's something from June 1962, Yachting Magazine. It's THE PREMIUM V8 offering of the era, from Lincoln Mercury Division of FoMoCo. These were not cheap motors, quite the contrary, they were expensive, plank-head motors rated at 275-hp, able to almost run forever. Bearing surfaces are large, there is lots of iron, and these would be a fabulous collectable if anyone had a fresh (or good running) pair in a Chris Craft yacht of any kind, Commander, Constellation, or otherwise.
These motors were offered in automotive form at power ratings of 375 to 400-hp with three carbs. At 275, they are detuned and would (and did) easily outlast many owners!
The first in-the-water test of a Commander, by Hank Bowman, used a 38 Commander in 1964 fitted with this engine option. Here is that test, a chriscraftcommander.com exclusive:
http://www.network54.com/Forum/424840/message/1173461961
In addition, here is a lot more info about this great engine, from our files.
http://www.network54.com/Forum/503931/thread/1149538038/last-1149538038
For your reading enjoyment!
Paul