2.5 question (compatibility) - JeepForum.com

 
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post #1 of 3 Old 05-29-2013, 05:27 PM Thread Starter
kingcat400
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1993 YJ Wrangler 
 
Join Date: May 2011
Location: Flat Rock
Posts: 556
2.5 question (compatibility)

i have found a 2.5 used for a good price and want to rebuild it and put it in the yj.

the motor is from a 90 and it is tbi.

is the base motor the same as my 93? i will be putting my mpfi on it just want to know if the block and head are the same?

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post #2 of 3 Old 05-29-2013, 07:02 PM
jokerchief462
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1989 YJ Wrangler 
 
Join Date: Nov 2010
Location: Sin City
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Yes but there are some differences in the motor mount brackets. Keep your old motor and all attaching parts until the new one is installed.

89YJ 2.5L TBI, AX-5, NP231 SYE, Ford 8.8, Yukon Grizzly, Tom Woods Shaft, 33" BFG T/As, 4" lift, Warn VR10000s.

AF Jeep Club Tail #184
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post #3 of 3 Old 05-30-2013, 04:08 AM
Jeepsr4me
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Join Date: Dec 2004
Posts: 8,831
Also check the oil pans... I know they changed from TJ blocks for YJs.. But I have put in 87 2.5s in a 99... Blocks all the same, its the external stuff and oil pans and oil pumps that are differnt.
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