L4 upgrade

rmballou · 03-07-2009, 06:47 PM

just picked up a Jeep comanche today i havent even looked at it it needs a new motor... block is toast and very holy now..
is there a good upgrade? or should i stay stock. would like to use the trans and tcase thats in it...

its a 86 with an l4 5 speed (i think) never even looked at it..
axles are 30 and 35..... any thing special be done to these?
truck will be offroad only....... i paid 150 for it.... basicly needs motor....b

any help wold be great

i have had cjs before still got 1

Pete M · 03-07-2009, 09:28 PM

The easiest would be to get another 2.5L block from any year MJ/XJ/YJ/TJ. Reuse your head and accessories and it should be fine.

--Pete

1987mj2wd · 03-09-2009, 11:27 PM

get a 6L and put that in it

rmballou · 03-10-2009, 10:34 AM

will a 258 bolt to the trans??

Pete M · 03-10-2009, 02:03 PM

No. The 2.5L and 258/4.0 do not share transmission bolt patterns.

1987mj2wd · 03-11-2009, 07:30 AM

well duh one is a 6L and one is 4L and the other is a v6

rmballou · 03-11-2009, 01:11 PM

what about a 2.5 out of a 91 s10??

Pete M · 03-11-2009, 01:26 PM

As far as I know, that's a motor based on the old Iron Duke 2.5 (which is completely different than the Jeep 2.5L).
try car-part.com and search for various years of XJ/YJ/TJ The Jeep block changed very little over the years but the part number would have changed here and there so one search may not bring up all of the possibilities in your area.
--Pete

rmballou · 03-11-2009, 02:10 PM

thats kool theres a guy around here with that s10 motor for 50 bucks

wow-newuser36 · 03-23-2009, 04:04 AM

The result of the historical exploration is four volumes of documents in which "the allegations made by Armenians are answered one by one," according to a Turkish journalist familiarwith the research. The project marks the first comprehensive attempt by Turkish scholars to challenge the Armenian version of the tragic events of the past.

rmballou · 03-25-2009, 06:07 PM

i have read somewhere that a chevy 4.3 will bolt up?

**mjjeeper** · 03-25-2009, 07:11 PM

with an adapter i believe. just get another block and whatever ya need to put the 2.5L back together. put a 4 to 1 kit in the t-case and go in the woods. have fun!

rmballou · 03-25-2009, 07:34 PM

i cant find a 2.5

03-10-2009, 10:34 AM	#4
rmballou Registered User Join Date: Feb 2006 Location: cincinnati Posts: 116 Profile Gallery Classifieds My Jeeps	will a 258 bolt to the trans?? __________________ its like a puzzle so many little peices maybe i shouldnt have been drinking when i was restoring?

03-11-2009, 01:11 PM	#7
rmballou Registered User Join Date: Feb 2006 Location: cincinnati Posts: 116 Profile Gallery Classifieds My Jeeps	what about a 2.5 out of a 91 s10?? __________________ its like a puzzle so many little peices maybe i shouldnt have been drinking when i was restoring?

03-11-2009, 02:10 PM	#9
rmballou Registered User Join Date: Feb 2006 Location: cincinnati Posts: 116 Profile Gallery Classifieds My Jeeps	thats kool theres a guy around here with that s10 motor for 50 bucks __________________ its like a puzzle so many little peices maybe i shouldnt have been drinking when i was restoring?

03-23-2009, 04:04 AM	#10
wow-newuser36 Newbie Join Date: Mar 2009 Location: 1 Posts: 3 Profile Gallery Classifieds My Jeeps	historical The result of the historical exploration is four volumes of documents in which "the allegations made by Armenians are answered one by one," according to a Turkish journalist familiarwith the research. The project marks the first comprehensive attempt by Turkish scholars to challenge the Armenian version of the tragic events of the past.

03-25-2009, 06:07 PM	#11
rmballou Registered User Join Date: Feb 2006 Location: cincinnati Posts: 116 Profile Gallery Classifieds My Jeeps	i have read somewhere that a chevy 4.3 will bolt up? __________________ its like a puzzle so many little peices maybe i shouldnt have been drinking when i was restoring?

03-25-2009, 07:34 PM	#13
rmballou Registered User Join Date: Feb 2006 Location: cincinnati Posts: 116 Profile Gallery Classifieds My Jeeps	i cant find a 2.5 __________________ its like a puzzle so many little peices maybe i shouldnt have been drinking when i was restoring?