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What bolt size/thread for the TPS?

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Old Apr 20, 2003 | 08:50 AM
  #1  
ZaphodB's Avatar
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Joined: Oct 1999
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From: Uppsala, Sweden
Car: Camaro IROC-Z '89
Engine: 350 TPI /w Procharger P1SC
Transmission: TH700R4 with Transgo shiftkit
Axle/Gears: 2.77 Borg Warner
What bolt size/thread for the TPS?

I need to know what bolt size/thread the bolts for the TPS are, because when I was going to replace the throttle body I realized that one of the TPS bolts was bad, the threads were damaged at the end of the bolt....

If there's a part number for these bolts it'd be very good to know since I am afraid that they might be not-so-common in Europe where I live.
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Old Apr 20, 2003 | 09:02 PM
  #2  
TPI Monte SS's Avatar
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From: Bergen County, NJ
Car: 1988 Monte SS
Engine: ZZ4-cammed TPI 355
Transmission: World-Class T5
Unfortunately, they're not really an easy to find metric OR standard (my experience anyway). I broke one a while ago, and wound up going to the junkyard and taking one off a 2.8L V6 F-body. They use the same basic TPS, and the screw is exactly the same.

Last edited by TPI Monte SS; Apr 20, 2003 at 09:04 PM.
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Old Apr 20, 2003 | 11:08 PM
  #3  
ZaphodB's Avatar
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Joined: Oct 1999
Posts: 297
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From: Uppsala, Sweden
Car: Camaro IROC-Z '89
Engine: 350 TPI /w Procharger P1SC
Transmission: TH700R4 with Transgo shiftkit
Axle/Gears: 2.77 Borg Warner
Originally posted by TPI Monte SS
Unfortunately, they're not really an easy to find metric OR standard (my experience anyway). I broke one a while ago, and wound up going to the junkyard and taking one off a 2.8L V6 F-body. They use the same basic TPS, and the screw is exactly the same.
Okay, that means that I am either heading to the junkyard or the machine shop to have the holes re-tapped for some more normal bolts....
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Old Apr 21, 2003 | 09:18 AM
  #4  
ZaphodB's Avatar
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Joined: Oct 1999
Posts: 297
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From: Uppsala, Sweden
Car: Camaro IROC-Z '89
Engine: 350 TPI /w Procharger P1SC
Transmission: TH700R4 with Transgo shiftkit
Axle/Gears: 2.77 Borg Warner
Originally posted by TPI Monte SS
Unfortunately, they're not really an easy to find metric OR standard (my experience anyway). I broke one a while ago, and wound up going to the junkyard and taking one off a 2.8L V6 F-body. They use the same basic TPS, and the screw is exactly the same.
Is the bolt size the same on TBI as on the TPI?

Reason I wanna know is that I am more likely to find TBI cars in my local junkyards since there are not many F-bodys around here - Especially not in the junkyards.... And I belive the same TPS is used on the TBI on Chevy Vans for example?

But I a considering have the TPS holes machined to fit standard M5's instead of hunting for M4.5 bolts...
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