C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Pulling Plenum And Runners...Runner Bolt In Valley ??

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Old Dec 30, 2003 | 12:11 PM
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Default Pulling Plenum And Runners...Runner Bolt In Valley ??

Hi Everyone :seeya

I'm starting my winter projects today so I did a search on runner removal and read something about there being a bolt in the valley.
What valley ? I hope it isn't the lifter valley :smash:
Thanks
:cheers:
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Old Dec 30, 2003 | 12:33 PM
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Default Re: Pulling Plenum And Runners...Runner Bolt In Valley ?? (AGENT 86)

Both runners have a bolt that you have to access from the opposite side.

Vic
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Old Dec 30, 2003 | 12:39 PM
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Default Re: Pulling Plenum And Runners...Runner Bolt In Valley ?? (Vic'89)

Not a big deal. You'll need a long extension to use with your T-40 bit. One bolt on each side.
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Old Dec 30, 2003 | 12:43 PM
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Default Re: Pulling Plenum And Runners...Runner Bolt In Valley ?? (AGENT 86)

Vic is right, on the left rear and right front there is a bolt that must be accessed from across the intake base.

You will find that a thin Torx bit with 3/8" extension will help to free them and a long hex driver will help in starting them back on reassembly.

After you get the plenum bolts out you likely will need to "persuade" the plenum to break loose from the upper runners but, once the lower runner bolts are out the runners just "fall off".

You will do well to put a tag onto each Torx bolt before you bag them, as they are of various lengths depending on location.
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Old Dec 30, 2003 | 12:56 PM
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Default Re: Pulling Plenum And Runners...Runner Bolt In Valley ?? (65Z01)

:thumbs: Thanks Guys
Now I get to go back out to below freezing temps,naturally chilled beer and one hot car :D
The Poor Man's Carport is still alive and going strong :crazy: :smash:
:cheers:
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Old Dec 30, 2003 | 02:16 PM
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Default Re: Pulling Plenum And Runners...Runner Bolt In Valley ?? (65Z01)

Is that the same for 87's... ?
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Old Dec 30, 2003 | 02:39 PM
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Default Re: Pulling Plenum And Runners...Runner Bolt In Valley ?? (vinnies87)

Is that the same for 87's... ?
Yes. they are the same
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Old Dec 30, 2003 | 02:41 PM
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Default

Just don't drop a runner bolt INTO the valley. :leaving:
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Default Re: (scorp508)

Nor do you want to drop a bolt into a intake lower runner... unless you have the magic magnet on a stick to get it back!

:crazy:
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