Drill and tap holes in the top of the lifters and use a slide hammer to yank them out. Virtually everything in a seized-up engine is trash anyway, with the possible exception of the crankshaft, block, head, and connecting rods. (Maybe the cam can be reground- - - -nobody I know of is making small bearing journal new cams).
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!