Are there larger throttle bodies that would be a direct swap onto a 97 grand cherokee 6 cylinder?

Matt... What do you have on your mind?
Big JIm <img src="/forums/images/graemlins/pfft.gif" alt="" />

well when I was modding my mustang; I was able to take a 1986 mustang 65mm throttle body and put it on my 1995, which had a 60mm throttle body.

So I was wondering if similar swaps can be done with jeeps. For example, are the throttle bodies on an 8 cylinder jeep larger than the one's on a 6 cylinder jeep, if so, can they be swapped? or is there a aftermarket that sells larger TB?

The question you have to ask yourself is: Will the engine be able to utilize the greater flow capacity of the larger throttle body? If the answer is no, then it's a waste of time and money making the change.

The same holds true with carburetors. I've known guys with a bone stock AMC 304 replace the MC2100 2-bbl carb on their engine with a different manifold and a 750 CFM Holley 4-bbl carb. There's no way that 304 can unilize that much flow, unless it gets some major engine modifications involving valve timing, porting and polishing, etc. Even then, a 600 cfm carb would be plenty. For the stock 304, even if they wanted a 4-bbl carb, a 390 cfm or 470 cfm would be plenty. Actually, the original MC2100 2-bbl is well suited to that engine.

So, before you go to the trouble of adapting a larger throttle body, I'd suggest you find out how much flow your present TB gives, how much flow the TB you're considering gives, and how much your engine can even utilize.

MAtt everything on that engine is engineered to do a job.. All components DEPEND on all other components telling the TRUTH to the computer.
When you have a larger TB at any given position of the throttle the TB is allowing more AIR than the TPS is telling the computer... so in effect the mixture is ALWAYS too lean...so then the ox sensor or the clatter sensor tells the computer to make the mixture RICHER... And on and on.. Why mess with an engine that has had thousands...maybe millions of hours evgineering <img src="/forums/images/graemlins/pfft.gif" alt="" />to make it the very BEST it can be?
Save your money, time and effort and get some lower gears for more power.
Big JIm <img src="/forums/images/graemlins/pfft.gif" alt="" />