Motor Install with Lift Plate on Intake?

Well it is a lot more than 600lbs. for a motor/trans
combo.
weight of the motor alone is over 700lbs.
Just make sure the bolts are threaded in pretty far
and you should'nt have any problems.
But if it takes you 4-6 hrs. from the time you pick it up
off the floor til you have it bolted to motor mounts
you are really slow.
Should only take a few minutes.
Good Luck.