4.7 to 4.7 HO

Reply Subscribe

Thread Tools

Search this Thread

05-20-2014, 08:25 AM

04se

Newbie

Thread Starter

Join Date: May 2014

Posts: 1

Likes: 0

Received 0 Likes on 0 Posts

Model: Cherokee

4.7 to 4.7 HO

I just found out my 04 Grand Cherokee will need a new engine. It has a 4.7 in it and I am planing on going with a manufactured 4.7ho engine. Is there any thing I need to do to make this work?

Reply Like

06-03-2014, 11:46 PM

cjoffroadtrx97

Newbie

Join Date: Jun 2014

Posts: 20

Likes: 0

Received 1 Like on 1 Post

Model: Cherokee

I was thinking that the only major difference between the two engines is the number of teeth on the fly wheel

Reply Like

06-03-2014, 11:52 PM

cjoffroadtrx97

Newbie

Join Date: Jun 2014

Posts: 20

Likes: 0

Received 1 Like on 1 Post

Model: Cherokee

The HO also runs on premium fuel and gets worse gas mileage but at the same time has about 30 more horsepower but Idk I wouldn't really know

Reply Like

06-04-2014, 03:12 AM

dave1123

Old fart with a wrench

Join Date: Nov 2010

Location: Manlius, east of Syracuse, NY

Posts: 14,398

Likes: 14

Received 723 Likes on 628 Posts

Year: 2000 XJ Sport & WJ Laredo

Model: Grand Cherokee (WJ)

Engine: 4.0L

You'd probably need a new PCM for it and maybe some other electronics, idk. Doing swaps to other engines can create nightmares unless you know what you're doing.