Are the heads still on? If not use two head bolts and pull it out that way. If the heads are still on i've heard of people using exhaust studs . I think when I put my block in my car I used one of the front accessory bolts in the front of the block, and a bolt in the back of the pass side head. I suppose you could use a bolt on the intake as well or run a strap under the doghouse.
I would remove the front of the car, bumper, core support, rad...... Its a PITA to say the least. I would get a bolt in the back of the head and one in the front.