Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: Nosebolt on March 19, 2009, 09:53:37 PM

Title: 4lt head swap
Post by: Nosebolt on March 19, 2009, 09:53:37 PM

I have been reading on other forums about fitting a 4lt head with injection on to a 258,

has anyone done this?
is it worth doing?

I know alot will say just get a V8, but cant see that hapening for a while and I want to make the CJ a true everyday car.

Title: Re: 4lt head swap
Post by: Bubba on March 19, 2009, 09:57:24 PM

jim yj did it  loves it

Title: Re: 4lt head swap
Post by: Mike Pavelin on March 19, 2009, 10:32:07 PM

Yup, speak to Jim Wait. Not as simple as it sounds though.

Title: Re: 4lt head swap
Post by: Bubba on March 20, 2009, 08:08:44 AM

i think its better to change the whole thing to a 4.0 not just the head

Title: Re: 4lt head swap
Post by: Nosebolt on March 20, 2009, 10:20:18 AM

that was going to be the next question,

what advantage is there to a head swap over a full engine swap or visa versa?

Title: Re: 4lt head swap
Post by: Roland on March 20, 2009, 11:46:59 AM

Not an answer to your question but loads to look at.

http://jeep.off-road.com/jeep/article/a ... ?id=277013 (http://jeep.off-road.com/jeep/article/articleDetail.jsp?id=277013" onclick="window.open(this.href);return false;)
http://www.bustedjeep.com/projects/rebuild.asp (http://www.bustedjeep.com/projects/rebuild.asp" onclick="window.open(this.href);return false;)
http://www.jeepstrokers.com/forum/viewt ... p?f=6&t=24 (http://www.jeepstrokers.com/forum/viewtopic.php?f=6&t=24" onclick="window.open(this.href);return false;)

Title: Re: 4lt head swap
Post by: wildwood on March 20, 2009, 12:14:57 PM

Also look at HESCO (google) have loads on heads from 4.0 to 4.2 as well as ridiculously spendy$$$$$ ali. head that ups the BHP..
Not for spending or getting unless you win the Euro-lottery tonight but interesting to read about.....

More Jeep Porn I guess!

Off top of head I think head bolt holes have to be enlarged to  line up to 4.2 head bolts. So major machining .

Title: Re: 4lt head swap
Post by: Bulldog67 on March 20, 2009, 01:39:57 PM

Quote from: "Nosebolt"

I know alot will say just get a V8, but cant see that hapening

the dood will take a swap on an american pick up  :mrgreen:

Title: Re: 4lt head swap
Post by: jimyj on March 20, 2009, 03:16:44 PM

Yep  mine is a 4.2 injected yj , with a 4ltr head ported and polished  :-D  :shock:  
 Mines been running great for about 4  years now and it runs sweet , which is more than can be said about the rear diff  :mrgreen:

Title: Re: 4lt head swap
Post by: isle of man on March 20, 2009, 08:23:07 PM

Woody has I believe......

Title: Re: 4lt head swap
Post by: Bubba on March 20, 2009, 09:50:29 PM

i think it was cleggy at cheapfest 2 years ago exploded the whole thing

Title: Re: 4lt head swap
Post by: isle of man on March 20, 2009, 09:53:02 PM

Excuse me!!! woody took out the pumpkin also - that's how I remember it.

Title: Re: 4lt head swap
Post by: Bubba on March 20, 2009, 09:55:20 PM

not disputin bout woody just sayin cleggy  just shagged the whole lot

Title: Re: 4lt head swap
Post by: isle of man on March 20, 2009, 09:57:47 PM

Very good Dr Death very good.

Title: Re: 4lt head swap
Post by: Bubba on March 20, 2009, 09:59:52 PM

indeed i think it was terminal in both cases

Title: Re: 4lt head swap
Post by: isle of man on March 20, 2009, 10:03:34 PM

Very appropriate reply - or was that chance?

Title: Re: 4lt head swap
Post by: jimyj on March 21, 2009, 11:07:56 AM

Well glad its not just me then !!  :oops:

Title: Re: 4lt head swap
Post by: Bubba on March 21, 2009, 11:11:35 AM

dont think anyone sels parts just whole units

Title: Re: 4lt head swap
Post by: isle of man on March 21, 2009, 01:20:56 PM

Jim - have you asked the obvious, Mark Gasser?

Title: Re: 4lt head swap
Post by: jimyj on March 21, 2009, 05:19:57 PM

Yep , we have chatted to Mr G ,  but in this time of credit crunch cars sales  :twisted:  1 and 1/2 days !!!!!