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Old 05-02-2006, 12:56 PM
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Talking No More Wussy Power !!!!

I abandoned the idea of bigger rings and pinions in the axles to achieve a better speed/performance out of my jeep. Quickly, i modded my jeep (2.5L) with 4" lift and 33" tires. LOL!!! needless to say it barely moves... and i was planning on moving my 4:10 gears in the axles to 4:88's to compensate. Well life goes on, and I was doin a favor for a buddy (new roof) and his dad comes over and helps. This dude is a bad ass with cars ( custom mods hot rods that type)anyway, he liked the jeep and heard about my power problem and said he would help me out...He wants to give me(FREEBIE) a CJ7 three speed transmission and told me to get a chevy small block V-8 and he would help me mount and match it up!!! NO MORE BARELY GETTIN OVER ROCKS, I'LL BE ABLE TO HOP FROM ROCK TO ROCK!!! but i need some advise from my homies about this whole thing... (1) I need somewhere I can order a jeep to chvy conversion kit (i.e. motor mounts/ bellhousing.) and (2) I am asking you guys if you can think of any other parts/or mods I will have to make? Will the vastly higher torque out of the small block force me to improve my drive shafts or universals? what about my transfer case? will the total length of new motor and tranny change my shaft lengths? will I need heavier axles? the questions keep coming? you get the picture... any response will greatly help, even if it is a link for the chit I need. --thanks

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mine: 95' YJ-4"lift (Skyjacker) 2" body lift. chevy 350/th400/np241 swap. herculined interior, boat drain plugs for floor. TJ hood. 33" MTR. Up next: bigger axles.
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Old 05-02-2006, 03:59 PM   #2
 
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1) look at advanced adapters. or novak i think is the other one

2)driveshats prolly will need changing t-case i dunno about maybe you can get an adapter

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Old 05-02-2006, 04:04 PM   #3
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You WILL need heavier axles...a v8 will shread them!
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Old 05-02-2006, 05:06 PM   #4
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Axles definitely if you have the 35 in the rear.

You are going to need adapters for the tranny I believe and also the tranny to tcase unless you are going to use the D300 out of a CJ also. Advance Adapters and Novak Industries are the best for this information. You can find out anythign about putting a chevy V8 into a jeep.

Also do you have emissions testing in Michigan? If so and the engine is older than your model year YJ you will have problems with the required emissions equipment not being there. A lot of guys into hot rods don't have a problem with this, because in most states that have emissions testing anythign over 25 years old is exempt from it.
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Old 05-07-2006, 08:45 AM
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thanks alot guys, no emissions here in michigan. What axles would you suggest? Just heavier axle shafts or completly bigger axles? tubes and all???What axles other than jeep/chrysler will fit under my jeep without changing the width of tire spacing? I got 33"x12.5 (I dont want them sticking out any further than they do...) Would a ford ranger axles fit? are they tuff enough? Should I just get one of those axle reinforcment kits? they are the u-bolt on ridgid steel braces that strap onto the outer sleeves of the axle,and then get heavy duty shafts.?
Now doesnt the tranfer case attach to the back of the trans? so why would that need any adjustment (other than mounts due to drive trane length differences due to the size change in engine) I will be sure to check out those sites.thanks again!
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mine: 95' YJ-4"lift (Skyjacker) 2" body lift. chevy 350/th400/np241 swap. herculined interior, boat drain plugs for floor. TJ hood. 33" MTR. Up next: bigger axles.
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Old 05-07-2006, 10:08 AM   #6
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Quote:
Originally Posted by Felsengleiskette
thanks alot guys, no emissions here in michigan. What axles would you suggest? Just heavier axle shafts or completly bigger axles? tubes and all???What axles other than jeep/chrysler will fit under my jeep without changing the width of tire spacing? I got 33"x12.5 (I dont want them sticking out any further than they do...) Would a ford ranger axles fit? are they tuff enough? Should I just get one of those axle reinforcment kits? they are the u-bolt on ridgid steel braces that strap onto the outer sleeves of the axle,and then get heavy duty shafts.?
Now doesnt the tranfer case attach to the back of the trans? so why would that need any adjustment (other than mounts due to drive trane length differences due to the size change in engine) I will be sure to check out those sites.thanks again!
For the easiest axle swap, find a later model Explorer for the rear end (8.8) or a Wagoneer rear (Dana 44) and maybe a front from a Wagoneer... (You can make a Dana 30 stand up to some abuse if you want, but we get into that whole discussion about turd polishing...) If you have the transfer case from the CJ it should hold up behind a V8.

On a side note, where in MI do you live exactly? Would love to see this swap happen...
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Old 05-29-2006, 08:36 AM
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thanks for the info jeeperman,I live in redford. But possibly the swap will take place in union lake area...which is a little closer to you. I will definatly keep you posted. If your familiar w/ the livonia/redford area im basically at 7mile and inkster. Hey, you know of any good scrap/junk yards I can hunt some of this chit down at? what do you think the best vehicle to get my V-8 from? dont want from a camero or anything (im afraid it would be ragged on to badly) well I plan on rebuilding it but you get the pic. Ive even contemplated putting a mustang engine in it...due to someone else having a trans for one and my boss has been housing a 5.0 engine at my work and hes sick of it being there... which would be better? CJ7trans w/ chvy V8, or ford trans w/ a 5.0?
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mine: 95' YJ-4"lift (Skyjacker) 2" body lift. chevy 350/th400/np241 swap. herculined interior, boat drain plugs for floor. TJ hood. 33" MTR. Up next: bigger axles.
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Old 05-29-2006, 10:50 AM   #8
 
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V8 conversion

Before you make too many decisions please visit this site, and read all the information they have on swaps. A Chevy engine is the easiest conversion there is, but it has been done with Fords. Once you do the research, you might change your mind.
http://www.novak-adapt.com/ This is a very informative site, and the same guy will talk to you on the phone, for hours if neccesary. You won't get that kind of treatment from Advanced.
They also have a section that you can compute your final crawl ratio........fun to play with.

The one adaptor that I had to use was only 3" thick.

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