LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Throttle Body plate

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Old 01-26-2009, 10:08 PM
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Default Throttle Body plate

So I recently started a machining class while im up here in college. I've been thinking about what I could do thats relatively easy for my car, and i thought of making my own custom throttle body plate. Unfortunately my car is stored for winter back at home a few hundred miles away. I was wondering if anyone could look into the dimensions for the throttle body plate and the necessary holes and let me know what they are. Any help is always appreciated.

Also if anyone have any ideas for engraving on it i'd like some of those too.
Old 01-26-2009, 11:38 PM
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Why would you want to put on a throttle body plate?

EDIT: I was assuming that you were referring to a TB spacer, that's why I was asking why. My bad.
Old 01-27-2009, 08:53 AM
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make one that has the firehawk logo...i would buy that in a second
Old 01-27-2009, 10:19 AM
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I wouldn't have much trouble making it at all....the problem is I cant exactly go home and look at mine and get the dimensions. Anyone willing to check for me or know what they?
Old 02-01-2009, 08:10 PM
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Nobody?
Old 02-01-2009, 08:18 PM
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Why don't you just buy a stock plate? I'm sure someone will GIVE one to you. For what you want to do you'd probably need someone to use a dial caliper to measure the distance between the bolt holes to make sure everything lines up perfect.

If I still had my stock plate I'd send it to you for free.
Old 02-01-2009, 11:15 PM
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You know it is a rectangle. All measurements in inches, measured w/a dial caliper. All corners are rounded, no reasonable method to measure that.

W - 4.25
D - 2.40
T - 0.85

It's after midnight, just home from the Superbowl, and I'm a little beat.
I'm working on the holes, let me get back with you tomorrow, O.K.?
That should get you enough to get you going. And make 2 while you are at it please, I would like a blank for my BBK TB.
Old 02-02-2009, 01:54 PM
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Awesome, thank you very much for that. If I can work after hours in there ill do my best to get one made for ya.
Old 02-02-2009, 03:33 PM
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Not a problem, just make a pair and tell the prof you want a backup. I understand what you are going through, college can be a biatch.
I'll post the numbers on the holes today. I have no way of getting the exact measurements (centerline to centerline would be the best), so I'll get you a good estimate on the centerlines and the od's on the screws. The holes will have to be slightly larger, of course. Best of luck on the course, and college in general.
Old 02-02-2009, 04:03 PM
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I think I have a stock one at home you can have. Ill check it out.
Old 02-02-2009, 04:08 PM
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Here we go (all units in inches, the front is considered relative to the front of the engine, left is on the passenger's side):

od on screw - 0.150

Centerline front holes to back holes - 01.50
Centerline back of plate to back holes - 0.325
Centerline front of plate to front holes - 0.20
Centerline right of plate to right-most hole - 0.375
Centerline left to plate to left-most hole - 0.300
Centerline left-most hole to center hole - 1.80

This plate is not perfect, as you can tell if you CAD it out. But I took it out to the TB and verified it is a bit short on the left side. Such is life.
Also, understand I did these measurements (using my dial caliper) on my workbench and eyeballs. Nothing more sophisticated.
Best of luck with your project.
Old 02-02-2009, 04:25 PM
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Originally Posted by AChotrod
I think I have a stock one at home you can have. Ill check it out.
That would be great too, so I have an easy way of verifying while I'm up here as well.


Originally Posted by koolaid_kid
Here we go (all units in inches, the front is considered relative to the front of the engine, left is on the passenger's side):

od on screw - 0.150

Centerline front holes to back holes - 01.50
Centerline back of plate to back holes - 0.325
Centerline front of plate to front holes - 0.20
Centerline right of plate to right-most hole - 0.375
Centerline left to plate to left-most hole - 0.300
Centerline left-most hole to center hole - 1.80.
Thanks again, hopefully I can get started on this sometime.
Old 02-02-2009, 04:57 PM
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NO! WE WANT IT NOW!!!

Just be sure and post some pics when you are done. BOL.
Old 02-02-2009, 05:06 PM
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Originally Posted by AChotrod
I think I have a stock one at home you can have. Ill check it out.
I've got a couple spare sitting around if you need some
Old 02-02-2009, 07:41 PM
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i just made one that has the firehawk logo etched into the center of it and the firehawk is anodized black with a teal "i" in the firehawk and the plate is polished.
Old 02-02-2009, 08:21 PM
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wanna make another with different colors?
Old 02-03-2009, 10:01 AM
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i thought about doing the same things, but machining a certain design on the top of mine. eventually i will.

curious though, wasn't there a company that was doing this a while back?




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