There's also a 500+ cubic inch version of the Chevy big block available. I believe it was originally sold as a retro-fit for motorhomes that needed a bit more power to get the snowbirds back and forth from yankee land to Florida or Arizona in their land yachts.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!