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Old 10-09-2013, 08:14 PM   #1
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95 YJ engine swap thoughts

Have a 95 YJ and looking at possible engine swaps. Found a possible doner 89 4.2 auto YJ (dashfire) with an automatic. What do I need to mate it to my 5 spd. (bellhousing, clutch, 500.00 adapter (YUK). Ideas a reasonably affordable way to transplant a 4.0, 4.2, or 350 Chev powerplant into it.

Yes I know trans/transfer wont take a lot more power. Please chime in in the 4.2 carb into the 95 5 speed or other ideas. Thanks

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Old 10-09-2013, 08:31 PM   #2
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Im guessing you currently have a 2.5? if so a 4.0 would be and easier and more worthwhile swap than a 4.2. Motor mounts will have to change regardless. There are several build threads of 2.5 to 4.0 swaps that cover the wiring and everything on here. To go 350 a lot more changes would need to be made.

My 305 swap http://www.wranglerforum.com/f8/89-y...ad-256560.html
Debating a Chevy v8 swap? read this thread
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Old 10-10-2013, 06:18 PM   #3
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switch to electric. all torque all the time.
"Some people spend an entire lifetime wondering
if they've made a difference. The Marines don't
have that problem."
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Old 10-11-2013, 08:58 AM   #4
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Start here for a 4.0L swap - lots of great info:

Leans 2.5L to 4.0L Swap
1995 YJ, 4.0L, AX15, 3" susp lift; Lock Right in Dana 30; 8.8 LSD; Flat Tummy Tuck, 1" Daystar BL; 1" MORE MML; 35" MT/r Tires;

StanF Tummy Tuck, Ford 8.8, Gas Tank Lift, Rocker Guard Fab, Ammo Can Console
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Old 10-19-2013, 05:03 PM   #5
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Thanks for the links.... good stuff. Looking toward 5.7 chev or 4.0.
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Old 10-19-2013, 07:11 PM   #6

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350 chevy would cost a lot more to do but it would be sporty..your tranny wouldn't handle it

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