if you watch the princess bride you'll notice that cary elwes is about a head shorter than andre. he's a giant wrecking ball of a man, but i don't believe 7'4".
i ran into the undertaker at an airport in florida of all places a while back, and he's definitely over 6'10". i'm 6'2" myself and he simply towered over me, i was up to his neck. realize that shawn michaels is around 6' and johnny nitro, who i saw in the gym i lift at before a local show that night, was taller than me and those two guys look tiny in the ring.
given that, dalip is easily 7'3".