Thought my coolant leak was a cracked head, but pulled the heads today and there is a crack in the cylinder wall on my 1999 4.0 liter.

What are my options as far as an aftermarket or rebuilt short block? I've already got new heads if they can be bought minus heads.

 

Junkyard engine is what I would do.

 

^ Agreed. It'll be much cheaper to just find a used engine and drop it in.

 

Get the block from the junkyard pull out pistons, re ring and new bearings.