Canadian Pontiacs ran a 261 with an 848 head and hydraulic valve lifters. It's slightly different (some say better) than the 261 truck engines used in the USA.
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!