throttle body


Asked by Mar 11, 2013 at 09:03 PM about the 1994 Ford F-150 SVT Lightning 2 Dr STD Standard Cab SB

Question type: Car Customization

what is the biggest throttle body i can put on my 1994 ford lightning with a  351W

4 Answers


Take the throttle body off and measure the size of the intake opening. It won't do any good to buy anything larger. Is the exhaust large enough to handle the increased flow?

1 of 1 people found this helpful.

there is also the issue of fuel pressure...wouldn't you be better off talking to a machinist for a second throttle body with a second injector?

1 of 1 people found this helpful.

Stock should be around 60 or 65mm, and you can increase it with a new one up to 75mm. But like tenspeed mentioned , you will only see an increase if you do heads and exhaust,etc. An engine is just a big air pump, so air going in, must come out.

3 of 3 people found this helpful.

^unless the throttle body/plate is a restriction causing drag. As tenspeed said, dont go bigger than the Intake manifold inlet for obvious reasons. The larger TB with also give you increased throttle response which is nice. On a side note, you 3 are post whores, arent ya?

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