Clam shell mounts/Holley - Team Camaro Tech
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post #1 of 14 (permalink) Old May 6th, 17, 02:09 PM Thread Starter
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Clam shell mounts/Holley

What size motor mount bolts are used with the LS Holley motor mounts and clam shells ?? I'm coming up with 1/2" x 5".

1969 X66 396 LeMans Blue, M20, 373 (Sold)
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post #2 of 14 (permalink) Old May 6th, 17, 07:08 PM
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Re: Clam shell mounts/Holley

I'll check for you I just put some on Steve's 68
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post #3 of 14 (permalink) Old May 6th, 17, 09:07 PM Thread Starter
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Re: Clam shell mounts/Holley

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Originally Posted by Vega$69 View Post
I'll check for you I just put some on Steve's 68
Thx John.

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post #4 of 14 (permalink) Old May 7th, 17, 05:31 AM
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Re: Clam shell mounts/Holley

Bolts

https://www.summitracing.com/parts/rnb-81101

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post #5 of 14 (permalink) Old May 7th, 17, 05:33 AM Thread Starter
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Re: Clam shell mounts/Holley

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Thank you John !

1969 X66 396 LeMans Blue, M20, 373 (Sold)
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post #6 of 14 (permalink) Old May 7th, 17, 05:40 AM
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Re: Clam shell mounts/Holley

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Thank you John !
I used Energy Suspension Poly Inserts. Was a pain getting the second bolt to line up. Then I read the "Hint" in the instructions that say to put a little lube or dish washing detergent on the insert to help it seat. Lol

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post #7 of 14 (permalink) Old May 7th, 17, 06:15 AM Thread Starter
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Re: Clam shell mounts/Holley

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Originally Posted by Vega$69 View Post
I used Energy Suspension Poly Inserts. Was a pain getting the second bolt to line up. Then I read the "Hint" in the instructions that say to put a little lube or dish washing detergent on the insert to help it seat. Lol
You know I did come across them as well. I have the standard Anchor mounts#2292. Strange that I can get a 1/2 inch bit through the mount hole and the adapter mount from Holley. The #81101 bolts are 7/16's.

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post #8 of 14 (permalink) Old May 7th, 17, 06:33 AM
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Re: Clam shell mounts/Holley

The Holley instructions tell you the bolt size....

Don

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post #9 of 14 (permalink) Old May 7th, 17, 07:54 AM Thread Starter
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Re: Clam shell mounts/Holley

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The Holley instructions tell you the bolt size....

Don
No Sir.

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post #10 of 14 (permalink) Old May 7th, 17, 11:07 AM
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Re: Clam shell mounts/Holley

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No Sir.
I am going to check my instructions because I am sure I ordered the bolts based on their stated size. Of course it goes without saying I am getting senile...

Don
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1959 El Camino project
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post #11 of 14 (permalink) Old May 7th, 17, 12:09 PM
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Re: Clam shell mounts/Holley

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I am going to check my instructions because I am sure I ordered the bolts based on their stated size. Of course it goes without saying I am getting senile...

Don
Ok I checked my instructions and I can't find it either... I used 7/16 bolts, no idea why...

Don

1969 Camaro LSA 6L90E AME subframe and IRS
1969 Camaro vert LS3 4L65E Ridetech level 2 - sold
1959 El Camino project
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post #12 of 14 (permalink) Old May 7th, 17, 05:31 PM
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Re: Clam shell mounts/Holley

Just FYI. Install the drivers side motor mount bolt from the front. If you install from the rear like I did it is impossible to remove. Had to change out my headers and ended up cutting the bolt to remove. Would have been much easier had I just installed from the front the first time.
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post #13 of 14 (permalink) Old May 7th, 17, 07:24 PM
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Re: Clam shell mounts/Holley

Well I posted the correct bolt as I had to do a little research to determine the correct bolts.

I just looked for the bolts based on the model years clamshells were used.
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post #14 of 14 (permalink) Old May 8th, 17, 12:10 PM Thread Starter
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Re: Clam shell mounts/Holley

Thanks everyone.

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