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

93 LT1 plug change

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Old Mar 22, 2020 | 09:38 AM
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Default 93 LT1 plug change

Any advice on changing the left side plugs. The passenger side was kinda ez. The dr side plugs are waaaay in there with a lot of stuff around them.
thanks Thad
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Old Mar 22, 2020 | 09:44 AM
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Get some swivel sockets and dig in.
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Old Mar 22, 2020 | 10:02 AM
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There is no easy way to do them. May want to try going from the bottom of the car. I have headers on mine and some are accessed from the top and some are accessed from the bottom, all are a PITA.
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Old Mar 22, 2020 | 11:50 AM
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A swivel spark plug socket along with a longer flex ratchet helps a lot. Not a big fan of swivel extensions for doing that job.
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Old Mar 22, 2020 | 07:23 PM
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IMHO, the drivers side easier.

just have to unbolt the ASR/traction control box and move it out of the way

no need to disconnect the throttle cables
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Old Mar 23, 2020 | 09:40 AM
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What you need.
1. Spark Plug Socket
2. Pass through Socket
3. 3 different extension lenghts
4. U-join extension
5. ratchet
6. Combination wrench that fits both sockets
7. Jack
8. Jack Stands
9. Few Bottles of your favorite brew
10. About 6 hours of time if it's your first time.

Some you will get from the top, others from the bottom. I made a list per cylinder of what combination I used to get each one. Unfortunately,it is in my notes at home. It can just be a bit of a frustrating job is all.

Oh, and...
11. New Plugs

Last edited by KyleF; Mar 23, 2020 at 09:43 AM.
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Old Mar 26, 2020 | 07:26 AM
  #7  
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An offset box wrench can be helpful as well.
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