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I have been hearing some things lately that you can port a stock 97 4.6L TB. Is that even worth the trouble? How would you do that?
 

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well i dont know about the 97 but i home made ported my 95 throttle body wth a tremel tool didnt see that much of a differnce and its really not worth it in my opinon unless you have major upgrades but it can be done.

Rigel
 

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97Tibirdman said:
I have been hearing some things lately that you can port a stock 97 4.6L TB. Is that even worth the trouble? How would you do that?
NOPE - the butterfly is still the same size - I use a 70mm TB
 

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I picked up a truck TB that had a 70mm blade. It was restricted to 65mm on the end so I chucked it up in the lathe and made it 70mm all the way. I did notice a slight difference from it over my stock 95 TB
 

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There is a guy on ebay who did mine for my 96 4.6 I will look up what I paid and get back....
Think I paid like $80...Dont know if guy still does work or not.....
His ebay user ID is SLIMMY1021
You can try and email him???????
 

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without a lotta flow goodies it simply isnt worth it... i run a 75mm T/b ,mwhich is about right for my setup, but a 4.6 will only get a tad better response , and not a true HP gain by adding a big 5mm to its size...
 

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It was one of those deals where I had it in front of me and said "why not" I was really just looking to use any throttle body bigger than my stock one. What was the stock one 54mm I think. I noticed better throttle response ,but I seriously doubt it actually made more horsepower after I did that. I never installed the throttle body with the lip still on it to find out how it did with that. I mostly did it because it was free. Friends in a junkyard can be useful at times. Especially when they owe you :).
Alan
 

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97Tibirdman said:
I have been hearing some things lately that you can port a stock 97 4.6L TB. Is that even worth the trouble? How would you do that?
If you motor is completely stock (not counting BOLT ONs) I wouldn't waste my time porting a stock TB. Even with mods.....I wouldn't screw with it. But if you're stock, and looking for alittle more HP.....then go with a replacement 70mm TB and a new....larger MAF....like atleast an 80MM. I didn that when my was stock....ran a 90mm L-MAF with a 70mm Tb and went from a best of 15.4 to a 15.2 in the 1/4 mile.....in 90 degree heat. Had friends in Dayton that witnessed it also.

Anyways, that would be my advise
 

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97Tibirdman said:
I have been hearing some things lately that you can port a stock 97 4.6L TB. Is that even worth the trouble? How would you do that?
Saying one mod is not worth it may be true but if you do all the little things they add up. I have done all the little not worth it mods I can to my 94 and it has a best run of 15.07 and I am confident it will go 14's with the drag radials.

My 2 cents worth.


 

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All I'm saying is porting the stock TB isn't worth the effort as compared to just going with a new, larger one. Yes, the other little things add up......but proting a stock TB just isn't worth it. A few guys here have tried it, and based on the results, the effort just wasn't worth it.
 

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It might, but I would fire off an email to CN and ask. That's what I would do. It probably would but you would need a custon air intake tube
 
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