[dscott]

TP, the main bolts should be ok. The 5 bolt block refers to the back of the engine where the bellhousing bolts to. Make sure you purchase a 28oz balancer and flywheel. There are 2 types of balance you can do on the engine. Static which is a weight balance for the rods and pistons and rotating which is for the crank, balancer, and flywheel. Normally this is all done by a good machine shop but you should make sure they can do the rotating. I had a shop doing my balance work years ago and found out he only did half the job.

If the pistons have valve reliefs you should be ok but I would check the clearance to be sure. There are a couple of ways to do this. If you're not sure I would have a pro do it for safety.

The trans will bolt up to any engine if you have the proper bellhousing. You need to make sure you have the 5 bolt bell for your engine.
Don