Swapping a 4.0 for a V8? - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Grand Cherokee & Commander Forums > ZJ Grand Cherokee Forum > Swapping a 4.0 for a V8?

Premium LED Lighting by VISION X, Proudly sold at ROCKRIDG*VOTE NOW Help Metalcloak Giveaway an XJ Suspension*Currie RockJock Products!!

Reply
Unread 03-27-2007, 05:19 PM   #1
Firegod14
Registered User
 
Join Date: Mar 2007
Location: CT
Posts: 28
Swapping a 4.0 for a V8?

I sure don't know how practical it would be, but now that I think about it my WJ seems just a tad underpowered with the 4.0 it has in it. I've been considering about selling it and looking for a V8, but is it unthinkably expensive and complicated to do an engine swap? (Maybe I could stick a H.O. in there ) Any ideas?

Firegod14 is offline   Reply With Quote
Unread 03-27-2007, 05:21 PM   #2
ArloGuthroJeep
Mr. Hyde!
 
ArloGuthroJeep's Avatar
2004 WJ 
 
Join Date: Mar 2005
Location: Boulder, CO
Posts: 23,077
You're planning on swapping transmissions as well right?
__________________
'04 WJ, 6" Clayton LA's, 242 SYE, 35" BFG MT KM2's, 4.56 gears, & D44a locked
'14 WK2 Limited w/5.7L, ORAI, & Tow Package
ArloGuthroJeep is offline   Reply With Quote
Unread 03-27-2007, 05:30 PM   #3
Firegod14
Registered User
 
Join Date: Mar 2007
Location: CT
Posts: 28
Well the tranny in the jeep I have now seems to be going anyway. I've already put money into it, and I don't know how much I'd be able to sell it for at this point. Anybody know the ball park range you'd be looking at to do a swap like this?
Firegod14 is offline   Reply With Quote
Unread 03-27-2007, 05:33 PM   #4
nierace
Registered User
2003 WJ 
 
Join Date: Jun 2005
Location: CT
Posts: 8,242
It would probably be cheaper and easier to stroke the 4.0...

I would just get another one with a V8
__________________
Nickerdoodle
03 WJ 4.7 242HD Kolak/IRO 5" Clayton LA's
35" BFGoodrich KM2
sira4x4.net North East Offroad Club
www.carolinadriveline.com
www.ironrockoffroad.com
kolak@aol.com
nierace is offline   Reply With Quote
Unread 03-27-2007, 06:06 PM   #5
Firegod14
Registered User
 
Join Date: Mar 2007
Location: CT
Posts: 28
I think just getting a new one is the way to go. But in terms of buying a limited, does anybody know how to tell if the particular car you are looking at has had the blend door issue fixed or not?
Firegod14 is offline   Reply With Quote
Unread 03-27-2007, 06:16 PM   #6
cmonson
Registered User
 
Join Date: Nov 2006
Location: Columbus
Posts: 1,546
why don't you stroke it to a 4.6?

It would be a torque monster!!! IMO much more power down low (where it counts) than a 4.7!!!
cmonson is offline   Reply With Quote
Unread 03-27-2007, 06:31 PM   #7
PR1AWRet
Registered User
1995 XJ Cherokee 
 
Join Date: Mar 2006
Location: San Diego/Imperial Beach
Posts: 819
Stroke it to 4.6 with dished pistons and turbo charge it. But that'll be 6K easy.
PR1AWRet is offline   Reply With Quote
Unread 03-27-2007, 07:51 PM   #8
skain8
Under Construction
 
skain8's Avatar
2002 WJ 
 
Join Date: Oct 2004
Location: Reading, PA
Posts: 3,496
Quote:
Originally Posted by Firegod14
I think just getting a new one is the way to go. But in terms of buying a limited, does anybody know how to tell if the particular car you are looking at has had the blend door issue fixed or not?

unless it was dealer serviced, fixed under warranty, or the private seller discloses the repair or kept good service records, there really is no way to tell if it was fixed. Keep in mind that just because it was fixed once, doesn't mean that it won't break again.. plastic parts replaced with "better" plastic parts.
__________________
Tom

'02 WJ: 4.7L, 5", HP44/9", 231HD, tall & skinny KM2's
'99 XJ: stock
'99 XJ: stolen
'06 XK: sold
231HD build guide
skain8 is offline   Reply With Quote
Unread 03-27-2007, 07:55 PM   #9
rrubio
Web Wheeler
2001 WJ 
 
Join Date: May 2005
Location: Peoria,AZ
Posts: 3,245
Would be cheaper to find a 01-03 4.7.....
rrubio is offline   Reply With Quote
Unread 03-28-2007, 05:42 AM   #10
cmonson
Registered User
 
Join Date: Nov 2006
Location: Columbus
Posts: 1,546
I would not worry too much about the blend doors. It really isn't that big of a deal. Mine has run strong with no signs of issues of the blend doors for 70K miles.

If it did break, one day in the driveway is completely worth th benefits to own a ltd IMO.
cmonson is offline   Reply With Quote
Unread 03-28-2007, 07:34 AM   #11
DefStatic
Registered User
 
Join Date: Jan 2007
Location: Maine
Posts: 50
Quote:
Originally Posted by cmonson
I would not worry too much about the blend doors. It really isn't that big of a deal. Mine has run strong with no signs of issues of the blend doors for 70K miles.

If it did break, one day in the driveway is completely worth th benefits to own a ltd IMO.

WTH is this BLEND DOOR ISSUE? Google time!
DefStatic is offline   Reply With Quote
Unread 03-28-2007, 08:30 AM   #12
BlaineWasHere
BecauseRacecar
 
BlaineWasHere's Avatar
 
Join Date: Nov 2004
Location: NorCal
Posts: 13,326
Quote:
Originally Posted by DefStatic
WTH is this BLEND DOOR ISSUE? Google time!
www.wjjeeps.com
__________________
2013 FR-S
BlaineWasHere is offline   Reply With Quote
Unread 03-28-2007, 08:32 AM   #13
BlaineWasHere
BecauseRacecar
 
BlaineWasHere's Avatar
 
Join Date: Nov 2004
Location: NorCal
Posts: 13,326
If you really want more power trade yours in for a V8. Screw a stroked I6, thats what people with REALLY big V8 envy do...
__________________
2013 FR-S
BlaineWasHere is offline   Reply With Quote
Unread 03-28-2007, 08:48 AM   #14
cmonson
Registered User
 
Join Date: Nov 2006
Location: Columbus
Posts: 1,546
Depending on what you are doing, an I6 is more than enough power IMO. If you are doing heavy towing, by all means buy the V8.

People get so stuck on the power of the v8, but really what is the point if you never use it.

For my style of driving and the conditions that I use my car (point A to B) the I-6 is perfect.

No one should argue that the I-6 i a tested in time reliable engine. It is extremely easy to work on as well.
cmonson is offline   Reply With Quote
Unread 03-28-2007, 08:54 AM   #15
BlaineWasHere
BecauseRacecar
 
BlaineWasHere's Avatar
 
Join Date: Nov 2004
Location: NorCal
Posts: 13,326
Quote:
Originally Posted by cmonson
Depending on what you are doing, an I6 is more than enough power IMO. If you are doing heavy towing, by all means buy the V8.

People get so stuck on the power of the v8, but really what is the point if you never use it.

For my style of driving and the conditions that I use my car (point A to B) the I-6 is perfect.

No one should argue that the I-6 i a tested in time reliable engine. It is extremely easy to work on as well.
I use my V8 everytime I accelerate... faster than you.
__________________
2013 FR-S
BlaineWasHere is offline   Reply With Quote
Reply
Thread Tools


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.