intake bolts

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Old November 2nd, 2023, 02:31 PM
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intake bolts

I pulled my intake to clean and put new gaskets on and I was wondering if I can replace the bolts and hardened washers ? The bolts appear to be grade 5. Where can i find the washers? What are your thoughts?
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Old November 2nd, 2023, 04:04 PM
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You should be able to get hardware locally. I suppose you could buy an ARP kit, but you don't need special hardware for the intake manifold. Here's another thread

https://classicoldsmobile.com/forums...e-specs-65357/
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Old November 2nd, 2023, 04:21 PM
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Originally Posted by Chuxter
I pulled my intake to clean and put new gaskets on and I was wondering if I can replace the bolts and hardened washers ? The bolts appear to be grade 5. Where can i find the washers? What are your thoughts?
I replaced mine when I changed out the intake manifold gasket. I can't recall if they were Grade 5 or Grade 8. None-the-less, my local Ace Hardware had the exact fit bolts & washers of the same Grade.
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Old November 2nd, 2023, 05:43 PM
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Why not clean up the stock bolts?
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Old November 2nd, 2023, 08:43 PM
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Grade 5 bolts are fine, but that grade washers are thin and soft and can distort. I bought Grade 8 washers at the local hardware store.
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Old November 3rd, 2023, 05:41 PM
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I used structural washers from Fastenal, I had a sample I took with me though
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