I notice Cyberboxingzone lists him as 6' 3", while boxrec lists him as 5' 9". I get there's often a bit of discrepency, but that is pretty ridiculous.
What's even worse is that wiki lists him as 5'11"... There's an image of him standing next to Joe Choynski where he looks the exact same height, and Joe is listed as 5'11" by wiki AND boxrec, so I'd say the best guess is 5'11"