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Where can I get my throttle body bored out? Is it a worthy upgrade?
I have a lame 55mm throttle body on my 1990 Cherokee and want to bore it out a couple mm. I know a newer model intake fits but I have an EGR valve and it's not an option untill I rebuild the engine (won't be for a looong time). What are my options and where can I get this done?
New TB's are not available for my year model, and I don't want to buy one it's too expensive.
2 Answers
- HotRodGuyLv 41 decade agoFavorite Answer
Larger aftermarket TB's are available for all of the 4.0's if I remember correctly, but arren't really going to improve performance without other mods to make use of the flow.
- LeAnneLv 71 decade ago
Boring out the throttle body will require a new butterfly plate as well - best if you just purchase a larger throttle body.
