If I was to have someone else remove my balance shaft from a '92 4G63 6 bolt block, could I just bring them the front cover with the balance shaft attatched? Or would they need the whole block too?

Front balance shaft is attached to a gear and runs on a balance shaft belt, rear shaft is part of the oil pump housing, driven off the timing belt.
Neither are attached to the block directly.
WWW.VFAQ.COM :goodluck:

They would need the block too if they were going to spin or replace the bearings to block the oil holes, unless you are going to do that yourself.
http://www.vfaq.com/mods/balance-shafts.html

We drill tap and plug the bearing oiling holes in the block so we would want the block as well. I doubt anyone else would. Most places just spin the bearings.

Jesus, won't you guys do anything half-assed? :stick:

j/k