just saw that you originally had a 4.6. Yes, OEM intake air hoses will be fine. all parts will work fine except as Extinct said.....

 

For bearings that need to be replaced, is it just rod and crank bearings, or are there more bearings? Some for sale say they are .10 or .20 over. What does this mean?

As for pistons, can I use the pistons from the 4.0 engine? How can I tell if the two pistons next to the gash are bad?

When putting the 4.6 crank, rods and pistons into the 4.0 block, I wont need to send anything to a machine shop to get balanced or shaved, right?

 

You need to read up on the basics of engine rebuilding before starting this project.

start here:
https://landroverforums.com/forum/di...29/#post385524

 

Agreed. Pull it apart and you will be able to visually compare the pistons, any questions you can ask here. 4.0 pistons will not work with 4.6 crank and rods, the pin location is different and they will stick out of the top of the block.

 

The oversized bearings are for a crank that was bad and needed machining. They won’t work for you, unless your crank has been machined.

 

To clarify, I should be able to complete this project without having to send anything to a machine shop, correct?

 

Probably. As you disassemble, you will be able to see everything and determine what’s needed. You should check your heads for flatness (I think .002” is max). But even that, you could machine yourself.

 

I read the engine rebuilding thread, and it didn't mention (or I couldn't find) anything about what bolts can be reused. I know the head bolts can not, but are there others that will need to be replaced?

 

I haven’t done a complete rebuild of a LR V8 yet, but I think only the head bolts, as they are Torque to Yield bolts. They are a one time use only.

 

Per the Rave the connecting rod bolts are supposed to only be used once, but I think that is overly conservative. Rover bottom ends are known to be very robust and rarely do we see one fly apart due to a loose rod cap. After disassembly if there are no big grooves in the crank or pistons you should be able to re-use everything without machining. Check the heads for flatness, if they exceed the spec I would not do it yourself but then my local shop only charges $80 to machine the sealing deck.