Originally Posted by Tumba

Sometimes(most of the time) on a rebuild, there needs to be some machine work done because the parts can wear at different rates. Usually thee cylinders need to be bored at least .30 over the original size, and sometimes the crank, and rods need machine work also. You have to be pretty meticulous to build an engine right.
When they come from the factory , they all came from castings, so they are pretty well matched up for fit.

Edit: I forgot to mention the heads. They always need a lot of attention.

Originally Posted by JoryWLU

To retouqe the heads, is all I have to do is remove the valve cover to get access to the head bolts or is there a lot more invovled. My friend told me if I retourqe the bolts have to be backed off then retighten not just trying to torque them down from where they are.

Originally Posted by JoryWLU

Does your oil get one the exhaust, if you shut of the truck does the engine bay smoke?

Originally Posted by JoryWLU

I am not an expert but you guys seem very cautious about a rebuild, what typically goes wrong with rebuild, everything is done by hand, so if the guy working on it is doing a proper job it should be better then the factory.

If it doesn't leak in the first year, it should be solid. What experiences have you had.