I believe all the smaller-displacement Zephyr V-12's had hydraulic lifters, and they gave a lot of trouble, mostly losing prime and rattling. I don't recall hearing about a miss caused by lifters. Those engines were chronic oil-burners, and terribly underpowered. A lot of Lincolns got retro-fitted with flathead Ford or Mercury V-8's, which is why the 12's are so scarce and expensive now.
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!