The lifter body is hollow, so that hole is just there to prevent pressure buildup inside the body due to heat and to drain any oil that might accumulate inside. A small drill bit would solve any concerns you might have about a no-hole lifter.
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!