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Bolt size

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Old 06-28-2015, 10:44 PM
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Car: 1986 Z28 Iroc
Engine: 350
Transmission: 700r4
Axle/Gears: 3.23
Bolt size

I just picked up a complete serpentine belt system. Only problem it didn't come with any of the mounting bolts. I have searched the Internet over and can't find what size they are anywhere. So who can help me out?
Old 06-28-2015, 11:06 PM
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Car: 1988 GTA
Engine: LB9
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Axle/Gears: 3.45
Re: Bolt size

Besides the big aluminum brackets, there's quite a mix of braces, studs, nuts, and bolts with both hex and torx heads. Not sure, but hopefully someone has a documented list of what's required. I tend to think stripping a complete junkyard engine would be easiest.
Old 06-28-2015, 11:11 PM
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Car: 1986 Z28 Iroc
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Axle/Gears: 3.23
Re: Bolt size

I hope so. I just need the ones that mount the system to the block
Old 06-29-2015, 12:20 AM
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Car: 1988 Camaro
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Re: Bolt size

Well most of the holes in the block will be 3/8-16 if that helps you any
Old 06-29-2015, 07:53 AM
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Car: Met. Silver 85 IROC/Sold
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Re: Bolt size

The second link provides a parts list and install guide:

https://www.thirdgen.org/forums/afte...rsion-kit.html

JamesC

Last edited by JamesC; 06-29-2015 at 07:58 AM.
Old 06-29-2015, 09:19 AM
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Re: Bolt size

Thank you JamesC that was what I was looking for.
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