How do you know when it's time for an inframe?

I thank the 3406 book says 420+- LBS so about the same.

 

I figured they were up there in weight. Something that you would definitely need a hoist for.

 

A lot. Maybe 350? Myself and a helper moved mine from my drive tires to my pick up. But you need a cherry picker to set it on the block or you will most likely damage the head gasket. I used 4 dow rods in the head bolt holes to line it up and slowly lowered it with my bobcat.

Edit to add: an overhead crane or hoist would make it super easy. But ya use what ya got. When my dad and i changed his head gasket on his 3406b in a farmers driveway in corrinth ky we got a local tow truck operator to lift it off and set it back down. Best 50 bucks I've ever spent. Certainly saved my back.

 

How much did it cost to rebuild it?