4.0L HO Jeep Engine Build

fishy68 said
Looking good Joe. That head does look like a real good design. No wonder they ran so good. My Dad bought a new 89 Jeep Cherokee with the HO engine and 5 spd. and it ran real good and lasted a long time. Great little engines.

I was pretty suprised at the engineering they did on the head. Mopar strikes again!

Fishy said
Really makes me miss my '93 ZJ. I wanted to punch mine out to a 4.6, but sadly I beat the crap outta the thing before I could get that far. LOL

Most Jeeps get beat to death. :-D

Well, I finally got the block back to machinist today and got a few pics of his shop with his permission. That engine in the dyno room makes 640 hp with a 390 cfm carb.