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Exhaust manifold bolts?

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Old 05-07-2014, 03:36 PM
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Car: 1988 Trans Am GTA
Engine: 350 TPI (L98)
Transmission: TH700R4
Axle/Gears: 3.27 9-bolt w/ Torsen LSD
Exhaust manifold bolts?

Hi, does anyone know the part number for exhaust manifold bolts? Or a part number for aftermarket bolts? (not for headers, I want to keep the factory manifolds)

I think i have a small exhaust leak on the passenger side, and if I'm going to remove the manifolds to put gaskets in I definitely want to replace all the bolts too, I don't want to put old rusty bolts from -88 back in there...
Old 05-07-2014, 11:35 PM
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Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Exhaust manifold bolts?

http://parts.nalleygmc.com/showAssem...modelYear=1988
Old 05-09-2014, 10:21 AM
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Car: 1988 Trans Am GTA
Engine: 350 TPI (L98)
Transmission: TH700R4
Axle/Gears: 3.27 9-bolt w/ Torsen LSD
Re: Exhaust manifold bolts?

Thanks, great site! Can't find all part numbers though but still very good!
Old 05-11-2014, 07:09 PM
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Car: 1987 IROC - Z
Engine: 5.0 TPI
Transmission: 700r4
Re: Exhaust manifold bolts?

They should be 3/6-16 Bolts. I would tap them, and put anti seize on the bolts before you thread them in.
Old 05-13-2014, 09:15 AM
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Car: '88 Firebird Formula 350
Engine: L98 TPI 350
Transmission: 700R-4
Re: Exhaust manifold bolts?

Originally Posted by captainchadl
They should be 3/6-16 Bolts. I would tap them, and put anti seize on the bolts before you thread them in.
I assume you meant 3/8-16 and not 3/6-16
Old 05-13-2014, 09:45 AM
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Re: Exhaust manifold bolts?

Yeah 3/8- 16
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