The last GMC six I built was a 256. (270 bore- - - -248 stroke) Made in Canada for military use. We honed the cylinders and knurled the piston skirts to get the right piston fit.
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!