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Unread 10-12-2004, 01:17 PM   #1
JeepDrivr93
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1998 XJ Cherokee 
 
Join Date: Aug 2004
Location: Michigan
Posts: 453
4.0 Throttle Body Conversion

Well for the last month or so I have been looking up the conversion for the 2.5 throttle body to the 4.0. This car is my DD and I was wondering if this conversion is even worth it. Will I notice a difference in acceleration? Also this engine has 111k on it, will this hurt it at all in the long run? Anyone have any problems with the installation? Feel free to throw in any additional comments.
-Nick

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Unread 10-12-2004, 01:25 PM   #2
Jeepgofast
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Join Date: Sep 2004
Location: Santa Fe Springs, CA
Posts: 72
The 4.0 throttle body won't hurt your engine, but you might not notice a huge difference in power. The throttle body is just bored out wider, which gets more air into the engine.

I've heard you need a spacer to put it in with no problems, and if you get one from a junkyard/used then make sure it has the sensors on it, but other than that, it should be painless. Most people that have done it say that they dont notice a big difference until they put a aftermarket intake in the jeep.
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Unread 10-12-2004, 01:41 PM   #3
CanukYJ
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Join Date: Sep 2003
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You don't need a spacer, it bolts right on. It works too. Search, this has been discussed a million times over.
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