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

Opti fastening bolts

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Old Oct 30, 2009 | 04:11 PM
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Thumbs down Opti fastening bolts

I seem to have misplaced the bolts, just want to know their length and thread specs.

Are they the same thread as the timing cover bolts? If so, whats their length?

I would have finished putting back the engine together by now had this not have happened
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Old Oct 30, 2009 | 07:44 PM
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They are the same as the timing cover bolts, just take one to your local hardware store.
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Old Oct 30, 2009 | 09:13 PM
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The threads are the same but they are longer. I need to know how long they are supposed to be.
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Old Oct 30, 2009 | 11:54 PM
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They are 2" long.
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Old Oct 30, 2009 | 11:56 PM
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They are the same thread pitch but a bit longer... about a 1/4 inch more.
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Old Oct 31, 2009 | 04:43 AM
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Originally Posted by riceburnerZ28
They are the same thread pitch but a bit longer... about a 1/4 inch more.
Actually, they are 5/8" longer.
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Old Oct 31, 2009 | 08:27 AM
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http://shbox.com/ci/fastener_matrix.html
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Old Oct 31, 2009 | 09:46 AM
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Originally Posted by shbox
That should have been made a sticky here. I would have bought every bolt on that list and made a kit so that I would have a new bolt for everything!

Thanks guys. I did get 2" bolts. Will try to finish the engine assembly today (only the accessories are left). Lets hope for a crank up from first turn over
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Some thing for future thought is an ARP engine bolt kit, we used it when we did heads and cam on my TA, makes things a ton easier.
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