The only thing better than a 261 is one with about 40 extra cubic inches, and 3/8 inch more stroke (lots of torque). The one I've got on the drawing board will also have pistons and sleeves from a Toyota Diesel engine, so when it's rebuild time it won't have to be rebored- - - -just slip in a new sleeve.That one might possibly end up with a roller camshaft and lifters and roller rocker arms, as well.
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!