plenum need boring when using a 58mm TB
Thread Starter
Banned
iTrader: (3)
Joined: Dec 2007
Posts: 275
Likes: 0
Car: 2006 Ford Mustang
Engine: 4.0 V-6
Transmission: Automatic
Axle/Gears: not sure
plenum need boring when using a 58mm TB
Just curious if the plenum holes need to be enlarged to bolt a 58mm throttle body in place of a stock unit.
Thread Starter
Banned
iTrader: (3)
Joined: Dec 2007
Posts: 275
Likes: 0
Car: 2006 Ford Mustang
Engine: 4.0 V-6
Transmission: Automatic
Axle/Gears: not sure
Re: plenum need boring when using a 58mm TB
I'm just asking cause my throttle body bushing are really bad and got a good deal on this 58mm. So wanted to know if it is a direct bolt on.
Senior Member
Joined: Jul 2006
Posts: 811
Likes: 2
From: 4-22 / 7-25
Car: '91 Z28 L98 G92
Engine: Modded L98
Transmission: Modded 700R4
Axle/Gears: Modded 10-Bolt
Re: plenum need boring when using a 58mm TB
Yes, the plenum air-inlet holes will need to be enlarged to match the size of the throttle bores in the 58mm t/b, maybe to clear the throttle blades as the lower half of the blade swings through the plenum opening. I had to enlarge them to fit a 52mm t/b. Otherwise, the 58mm would 'bolt-on' to a non-modified plenum.
Bill
Bill
Thread
Thread Starter
Forum
Replies
Last Post
