LT1-LT4 Modifications 1993-97 Gen II Small Block V8

What size bolts for the accessory bracket?

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Old Sep 14, 2011 | 03:22 PM
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Default What size bolts for the accessory bracket?

I've got this diagram but what I can't find at the moment are the bolts and I believe I tossed them due to corrosion. If someone can kindly tell me what they are I'll just take another trip to ACE hardware for the 20th time...
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Old Sep 14, 2011 | 03:24 PM
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Which ones do you need? Or all of them?
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Old Sep 14, 2011 | 03:33 PM
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Next time hot them with a wire wheel and some paint and you will be all good.
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Old Sep 14, 2011 | 04:18 PM
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Originally Posted by RamAir95TA
Which ones do you need? Or all of them?
All 4 of them.
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Old Sep 14, 2011 | 05:14 PM
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From: Jackstandican
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The manual I have says 3/8-16X2.50. There are only three bolts that hold the bracket in place. Do you need the fourth that holds the spark plug support?
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Old Sep 15, 2011 | 07:45 AM
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Originally Posted by SS RRR
The manual I have says 3/8-16X2.50. There are only three bolts that hold the bracket in place. Do you need the fourth that holds the spark plug support?
Yes I do since that goes into the block as well. But there are 2 different sizes. The two up top are shorter than the ones on the bottom. Correct?
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Old Sep 15, 2011 | 08:01 AM
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From: Jackstandican
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Originally Posted by Rob94hawk
Yes I do since that goes into the block as well. But there are 2 different sizes. The two up top are shorter than the ones on the bottom. Correct?
I don't think so? I believe all three sizes are the same. I'll have to get back to you on that. Don't have the manual handy right now.
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Old Sep 15, 2011 | 08:54 PM
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From: Jackstandican
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There are at least 3 bolts that are 3/8X16X2.50 and one that is 3/8X16X1.12. At least as far as I can tell.
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The top two going into the head are shorter than the other 2. Then there's a slightly longer one under the tensioner, and the longest one that holds the spark plug bracket. They are all the same pitch, 3/8-16, just different lengths.
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Old Sep 15, 2011 | 10:32 PM
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From: Jackstandican
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Originally Posted by Spartan7
The top two going into the head are shorter than the other 2. Then there's a slightly longer one under the tensioner, and the longest one that holds the spark plug bracket. They are all the same pitch, 3/8-16, just different lengths.
Yeah I probably read it wrong. If I were to guess I would say the two that go into the head are 1.12" and the bottom two are 2.5".
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