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-   -   Physical Differences Between TJ Engine Compartments (http://www.wranglerforum.com/f282/physical-differences-between-tj-engine-compartments-249623.html)

vertical horizons 06-15-2013 11:11 PM

Physical Differences Between TJ Engine Compartments
 
If I wanted to drop a V8 (& auto tranny) into a 1997-1999 TJ, should there be a preference as to whether the TJ was originally a 2.5L or a 4.0L?

Is there a difference in the engine compartment, or with the firewall? Or are they pretty much identical, when it comes to the areas under the hood and body?

tbensor 06-16-2013 12:12 AM

The engine compartments are the same. Look at Novak.com for parts. Consider the Chevy 4.8.

vertical horizons 06-16-2013 01:21 AM

Quote:

Originally Posted by tbensor (Post 3865000)
The engine compartments are the same. Look at Novak.com for parts. Consider the Chevy 4.8.

Novak.com brings up a family website.

http://www.novak.com/

I did find a few other NOVAK websites -

Www.novakautoparts.com
Www.novak-adapt.com

Were you referring to one of these?

UFOtestpilot 06-16-2013 01:34 AM

http://www.novak-adapt.com/

Evpjr 06-16-2013 08:51 AM

The Engine compartment in the 4.0L and the 2.5L are the same, but the location of the radiator, maybe set a little further back so as to accommodate the shorter engine block and allowing the fan to bring more air flow through it.

JeepersDave 06-16-2013 10:22 AM

The location of the radiator is the same between the 2.5 and 4.0. The real difference is the motor mounts which are about 5 1/2" farther forward on the 4.0. In the case of a V8 swap it doesn't matter since the mounts have to come out anyway

tbensor 06-17-2013 03:58 PM

Quote:

Originally Posted by vertical horizons (Post 3865124)
Novak.com brings up a family website.

The Novak family site

I did find a few other NOVAK websites -

Www.novakautoparts.com
Www.novak-adapt.com

Were you referring to one of these?


Yea Novak Jeep Conversions - Home sorry about that

XDR 06-17-2013 04:37 PM

4.0 can reuse mounts with bolt in mounts or weld in. 2.5 require weld in mounts. I did my swap into a 2.5 since the cost difference between the two couldn't make up the price point.


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