Old gray matter getting confused, sorry. Are you talking about your
setup or what? I don't remember what the bore on the 258 is. Is the
displacement difference only in the longer stroke of the 258 or does
it have a different bore than the 4.0?

For the OP, he would want the '92 head/intake/exhaust plus sensors on
the 88 block - with the '92 computer.

For your glass-tub and the engine from the XJ, you would need the
matching computer also. Better check me on this, but somewhere in the
back of my head ISTR a discussion a long while back about also needing
a different injector with the stroker. Seems like it was off a
Mustang or some such to get a higher fuel flow capacity.

On Sat, 21 May 2005 00:18:39 UTC Mike Romain >
wrote:

> I am thinking the guts of the 258 into the 4.0 block making it something
> like a 4.7 'stroker'. :-)
>
> It would be worth it to just swap the short block for the OP then eh.
> Keep the head and intakes and swap from there down. Even if the head
> needed a valve job, that isn't much.
>
> Mike
>
> Will Honea wrote:
> >
> > The HO intake manifold is a whole lot nicer. The flow geometry is
> > nice and symetrical. Between that and the port angles they got a bunch
> > of ponies to add to the 4.0. Not that I would sneer at the umph of
> > the '88 head on a 258 block...
> >
> > On Fri, 20 May 2005 12:49:20 UTC Mike Romain >
> > wrote:
> >
> > > Ahh ok, good to know, thanks. I knew the ports were different but
> > > didn't know the headers were. So only the short block will swap then.
> > >
> > > Man I got this 258 with a new crank sitting in my garage and an 88 4.0
> > > getting tired..... Stroker, mmmmm......
> > >
> > > Mike
> > >
> > > Will Honea wrote:
> > > >
> > > > The intake and exhaust aren't the same. The 92 used the HO head and
> > > > the mainfold/headers won't match up. Just looking at my 88 next to
> > > > the son's 91, nearly everything else will swap. I looked at this idea
> > > > a couple of years ago and decided that the only really easy way was to
> > > > swap heads onto the good block.
> > > >
> > > > On Thu, 19 May 2005 12:15:12 UTC Mike Romain >
> > > > wrote:
> > > >
> > > > > The engines are the same basically so you could just swap over the
> > > > > electronic parts to the 89.....
> > > > >
> > > > > I would just swap over the 'engine' and leave the intake and exhaust
> > > > > headers including the fuel rail, distributor and parts and alternator
> > > > > from the 92 in there.
> > > > >
> > > > > Mike
> > > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > > > 88 Cherokee 235 BFG AT's
> > > > >
> > > > > chevycruser_03 wrote:
> > > > > >
> > > > > > I need a '92 engine for my '92 cherokee. The one I have is '89 engine and
> > > > > > does not mach up with the computer system. '89 has a new crank sensor
> > > >
> > > > --
> > > > Will Honea
> >
> > --
> > Will Honea


--
Will Honea