4bangerjp.com

General Forums => The Mess Hall => Topic started by: officer mike on March 29, 2007, 10:41:27 AM

Title: 2.5 question
Post by: officer mike on March 29, 2007, 10:41:27 AM
Is the 2.5 that mopar used in the late 80s and ealry 90s the same one we have in our jeeps. May be a stupid question, but I am finding these car guys making some really nice numbers and I got jealous. and wanted to kno if they were working the same motor I have in the driveway. Thanks Mike
Title: Re: 2.5 question
Post by: officer mike on March 29, 2007, 10:44:53 AM
in the link below they have cylinder head and they state that you can have it resurfaced (decked) for natural aspirated use.. will that bolt to my block? Thanks Mike

http://www.forwardmotioninc.com/html/catalog/page5.html
Title: Re: 2.5 question
Post by: might4banger on March 29, 2007, 10:51:08 AM
Depends - but prolly not... The Dakota got the AMC 2.5 at one point.

read up here:
http://www.allpar.com/mopar/25.html

Jeep 2.5 info here:
http://www.allpar.com/mopar/amc-25.html
Title: Re: 2.5 question
Post by: Jeffy on March 29, 2007, 11:15:02 AM
in the link below they have cylinder head and they state that you can have it resurfaced (decked) for natural aspirated use.. will that bolt to my block? Thanks Mike

http://www.forwardmotioninc.com/html/catalog/page5.html

That's a Chrysler 2.5L not an AMC 2.5L.  Completely different.
Title: Re: 2.5 question
Post by: yellowta on March 29, 2007, 11:38:06 AM
Right, Chrysler didn't start using the amc 2.5 in anything but the dakotas till around 96' with the "2.5 magnum".  The earlier ones were totally different and nothing will interchange. Sorry ;)
Title: Re: 2.5 question
Post by: officer mike on March 29, 2007, 12:06:59 PM
What a crying shame!
Title: Re: 2.5 question
Post by: Guardian7 on March 29, 2007, 10:14:56 PM
Amazing to see them get 500hp from a 2.5L engine, wish we a vendor like this for Jeep engines.
Title: Re: 2.5 question
Post by: officer mike on March 30, 2007, 07:04:36 AM
on thier website they say that they do other things then what is listed and that they are always trying to fit the "our", THE ENTHUSIASTS, needs. so i am going to call them today and see if i cant persuade them to start making me a head assemply for  my 2.5 equevelant to the enforcer 1.  I wil report back if I get anywhere. Mike
Title: Re: 2.5 question
Post by: Jeffy on March 30, 2007, 01:16:00 PM
Amazing to see them get 500hp from a 2.5L engine, wish we a vendor like this for Jeep engines.

I'd just like to have around 200lbs-ft of torque and I can live with the low hp.

Did you ever seen Hot Rod Magazine's 2.5L Iron Duke build years ago?  I think it was pushing 4-500HP.  Then there was the  Cosworth Project DB (Super Duty 4) although not huge on HP it had a lot of torque.

J.P. Offroad Sponsored Jeep had one in it.

"Power for the lightweight rock warrior comes from a fuel-injected Pontiac Motorsports Super Duty 151 Iron Duke that has been bored & stroked to a robust 200 C.I. Equipped with Chevy LT-1 Corvette rods, and Keith Black forged aluminum pistons, the Duke pumps 145 Dyno'd horsepower and 250 ft. lbs. of torque through a 700R4 slushbox, complete with a custom built converter."

(http://www.off-road.com/rock/dknight/DSC_0150.jpg)
Title: Re: 2.5 question
Post by: officer mike on March 30, 2007, 11:28:26 PM
definitly good stuff