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Re: 91 Jeep Cherokee 4.0 engine transplant.

L.W.(Bill) ------ III wrote:
> I was correcting Simon assumption:

No Bill I've actually done the 4.0 head swap and used the 258 intake
manifold so the person who is assuming is YOU... See how that works?
It's pretty simple really.

Pic will be mailed in the next day or so, I'd send you a pic right now
without the "Bill is wrong" sign but that wouldn't be nearly as much fun :)

--
Simon
"I may be wrong, but I'm not uncertain." -- Robert A. Heinlein

Re: 91 Jeep Cherokee 4.0 engine transplant.

You may have done the head swap, but you couldn't have used the
carburetor manifold, the ports don't match! LOOK:
http://www.----------.com/temp/258vs4LPorts.jpg Like, did you notice the
difference in your old 2558" head and the 4L fuel injection head?????
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

Simon Juncal wrote:
>
> No Bill I've actually done the 4.0 head swap and used the 258 intake
> manifold so the person who is assuming is YOU... See how that works?
> It's pretty simple really.
>
> Pic will be mailed in the next day or so, I'd send you a pic right now
> without the "Bill is wrong" sign but that wouldn't be nearly as much fun :)
>
> --
> Simon

Re: 91 Jeep Cherokee 4.0 engine transplant.

Simon Juncal wrote:
>
> L.W.(Bill) ------ III wrote:
> > You may bolt an older exhaust on to the 4.0 liter, but the 258 CID
> > carburetor manifold will not match the ports:
> > http://www.----------.com/temp/258vs4LPorts.jpg
>
> Ok if I e-mail you a picture of my 88 YJ's black powdercoated 2bbl
> aluminum intake bolted to a 0630 4.0 head and Stainless OEM style 4.0
> header with a small sign that reads "Bill is wrong" will you post it and
> admit the sign is correct?
>
> --
> Simon
> "I may be wrong, but I'm not uncertain." -- Robert A. Heinlein

You can post it over on alt.binaries.pictures.autos.4x4 for all to
admire.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

Re: 91 Jeep Cherokee 4.0 engine transplant.

Simon Juncal wrote:
>
> Mike Romain wrote:
> > So in other words, you can junk the fuel injection on a 4.0, drop in a
> > cam and go with a carb and maybe a nice 4.2 performance intake to
> > 'really' get some power out of it. :-)
>
> I'll tell you if you really want some power out of a Jeep 6, do a 4.0
> stroker, the 4.6 (or more) with a 4.2 crank and rods is a real eye
> opener if you're used to the 4.2 or 4.0... It's not hard at all to put
> down more RWHP than a stock Mustang 5.0 with a mildly messaged stroker.
>
> The 4.0 w/ FI is definitely a better bet for power than ANY combintation
> of upgrades with a 4.2, (short of forced induction). I know you're fond
> of that old turd of an engine Mike but lets face it that thing was rated
> at just over a hundred hp and torque in it's day... And that might have
> been optimistic or even flywheel numbers... The 4.0 whips the pants off
> it in just about every regard. I own and wheel all three engines and
> I'll never build on a 4.2 again... waste of time.
>
> --
> Simon
> "I may be wrong, but I'm not uncertain." -- Robert A. Heinlein

Well, I have an extra 4.2 sitting in the garage with a freshly remanned
crank and bearings and a tired 4.0 I am removing from my 'new' 87
Cherokee to play with. Have a 'new' engine out of my 88 Cherokee for
the 87. Hmmm.....

I don't know what I have done to my 4.2, but it goes like a scalded cat
as it is. It will top 4400 rpm and hit over 50 mph in 2nd, a fast 75 mph
in 3rd, bury the speedo in 4th and who knows in 5th.

The best part is I still get well over 20 mpg on the highway.

I plan on playing with the two spare engines and build myself a stroker
for when mine wears out.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)