I am planning (mostly saving up) to pull my 4.0 SOHC out and replace the timing chain, caskets, tensioners the whole 9-yards. And I was curious on what else I should replace while the engine is out. Right now it has 146,xxx miles and all completely stock. I wouldn't mind making more power out of it because I do want to eventually off-road it but I am not sure if it is worth putting money into this engine vs dropping in a 5.0 V8.

What are your thoughts? I don't really have a budget, I will just save up longer and want to do it all at once. Thanks!

 

Is there a reason u wanna do this work? 2010 isn’t a trouble year as far as tensioners go.......I say if it isn’t making noise leave it alone. Now performance, well I think u are pretty limited , however u could S/C it...U could do headers exhaust and a tuner but I wouldn’t plan on netting more than 10hp...but u can pick up another 1-2 mpg from a tuner.Id be interested to see some info on a 5.0 swap or maybe a 2.3 ecoboost . Mostly I’d say the latter

 

Thank you for your answer!

 

The guides for the timing chains in my 2009 broke a few weeks ago, and while I was having the engine repaired the garage suggested replacing the harmonic balancer. They also said the tensioner was weak and was causing the serpentine belt to fray, but you already took care of that :)