Step 9: Attach the chain and detach everything else.
Second image is the 144ci that we later dropped into the van. On this we attached the chain to 2 points on the engine block using hardened steel #8 bolts. Do not use anything less than this as they will break and your 500-700lb engine will fall to the ground crushing anything in its way. If you're lucky they will break before you lift it and prove this point. Go to the auto parts store and ask for hardened bolts and bring an example of the size and thread you need. Test out any bolts you can find on the spots where you want to attach the chain and make sure you can get depth and a good amount of threads into a solid part of the engine block.
I also made a spacer bar, using the tools at TechShop, by cutting 2 feet of angle iron and then notching the ends to accept the chain link. A simple angle grinder could easily be used to make this bar in a few minutes. This bar keeps the chain pressure from smashing delicate stuff like the head cover and also helps to adjust the angle of the engine. You can buy an adjustable bar at the auto parts store fairly cheaply that is designed for just this purpose.