There's not much that can go wrong with a solid lifter. The short ones that resemble a hydraulic lifter without the internal parts use a longer pushrod than the older "milk can" style, so be sure you use the pushrod that matches the style of lifter you're installing. Sealed Power has been around since the 1930's at least- - - -it's hard to go wrong with an established company like that, unless somebody has bought the name and started selling repop parts from overseas instead of the good stuff. I think "Carter" fuel pumps are being sold that way these days which are nowhere near the quality of the older stuff.
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!