New 4.0 motor was just put in a year and a half ago Sam Leman Chevy in Bloomington put it in. I have a high rise BBK intake with a banks air filtering system. This jeep will not bog going up hills or nothing. it has a tremendous amount of power low miles on the motor only drove on weekends new wheels new rims new shocks lift new seat seats, leather by speed I had Amoco transmission go through the transmission and rebuild new clutch soft top AC cruise control. Everything works in this very nice jeep. I really don’t want to get rid of it, but I am married and I have to move on. I have kids whoever buys. His jeep is getting a really nice jeep. it has a brand new winch on the front tire rack mount on the back with spare matching built-in amp and stereo system the stupidest one of a kind I don’t want to see it’s got power it’s got power. I have never seen a jeep had this much power.