Re: Eagle engine swap?

["Jim Blair" <carnuck@xxxxxxxxxxx>]

A: I forgot to mention that the trans bolts up fine, but 
starter/flywheel/flexplates are somewhat year/vehicle matched. (EFI requires 
the matching flexplate with notches or harmonic balancer CPS kit with a 
Eagle trans) Jeep used 2 styles of EFI. 87 to 08/90 (EGR on the intake) is 
Renix and the intake fits the Eagle with minor changes, but the EFI harness 
and computer are under the dash. '91 up are HO and the whole harness you 
need is under the hood (except the trans controller if the parts rig is 
automatic, AFAIK) but the brake booster gets in the way.
   Same trouble with putting one into an FSJ, so I'm going with GM 
Hydroboost to clear the intake (and increase brake power).
   I happen to have a 999 from a '99 Wrangler (just the case alone and the 
internals are in a pile, but appear to be the same as 998 except the valve 
body is electronic) and I think it has the CPS sensor still. I would use a 
std trans harness with the Eagle (using the Eagle trans and flexplate) and 
probably get the aftermarket passthru VSS with the correct gear for the tire 
size/axle gear ratio. (the EFI will work better if you do)
   There was something else, but I'm not quite awake yet. Check out the 
AMC_Eagle list AMC_Eagle@xxxxxxxxxxxxxxx and if he's around, Keleigh can 
fill you in a bit on the swap.


From: adh@xxxxxxxxxxxxxxxxx (Sandwich Maker)
To: mail@xxxxxxxxxxxx
Subject: Re: Eagle engine swap?

" From: ramblerfreak <ramblerfreak@xxxxxxxxx>
"
"
" Howdy! i had a quick question i searched the archives as much as i could
" but i didn't find exactly what i was lookin for, i have a 1986 Eagle
" with a annoying engine ticking noise and worn rings that are allowing
" major blow by (this thing emits smoke in vast quantities at around 65
" mph)   Anyway i was looking in the junkyards and no one has any 4.2's
" that are worth anything but ive been coming across plenty of 4.0's will
" the 4.0 block bolt up to the 998 tranny? and will i have to modify
" anything like the int/exh manifolds to use the 2bbl carb set up? or
" should i try to get the EFI stuff to go along with the 4.0? and if i try
" to use the EFI will it work with a non computer controlled tranny?

yes; it's been done.  surprisingly the 4.0 block does have the eagle
diff mounting lugs even though they were never used.

cherokee autos up to '95 or so had independent controllers; wranglers
up to some date had non-electronic trannies.  an engine from those
years won't mind the 998.

it'll bolt up to the 998 but you'll have to relocate the cps if you go
with efi, or you could get the 999/32rh from a wrangler.  it's a
variant of the 998.

imho your easiest swap would be a wrangler 4.0 + tranny; up to '00/01
or so they were all 3sp like the 998, and the wrangler has a centered
fan like the grand chero but unlike the cherokee.  and i'd go with efi
- you'll love it.  the only hitch is intake/booster clearance; a
smaller booster is a good idea.  and if you get the whole pkg it
doesn't matter if the tranny is electronic [32re]; the ecm handles it.

belated thought: cherokees weigh pretty similarly to eagles but are
usually geared lower - nothing taller than 3.07.
________________________________________________________________________
Andrew Hay                                  the genius nature
internet rambler                            is to see what all have seen


adh@xxxxxxxxxxxxxxxxx                       and think what none thought