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TPI Throttle Body bolt finish?

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Old Dec 2, 2018 | 07:06 PM
  #1  
kfairshon's Avatar
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From: Maple Falls, WA (5 miles south of Canadian border)
Car: Yellow 85 IROC [Rare 1 of 205 GU6]
Engine: 5.0 TPI(30-over w/forged internals)
Transmission: 700R4 (NASCAR built)
Axle/Gears: GU6 3.42
TPI Throttle Body bolt finish?

Rebuilding my 85 IROC 5L TPI. What is the correct OEM finish for the TPI Throttle Body-to-Plenum bolts? Oiled? Black Oxide? Other?

Thanks much!
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Old Dec 2, 2018 | 08:31 PM
  #2  
Tuned Performance's Avatar
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From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: TPI Throttle Body bolt finish?

I think they are black oxide
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