Used chain to the motor mount bolts, put a chain front to back bolted to the knock sensor bolt and one of the larger bolts on the front to balance front to back (no real force exerted on these bolts so it will be OK)
That allowed me to install the rear plate and freeze plugs on the back of my bare block.
------------------------------------------------------------------ 1992 300ZX NA 5 Sp (Dead) 1990 300ZX NA Auto 2+2 (Dead) 1990 300ZX TT 5 Sp (Est. 400 HP) 1990 300ZX TT 5 Sp (Est. 600 HP) 2004 G35 Sport 6MT (DD)