C8 Z06 Intake Manifold Removal
Drifting
Joined: Feb 2008
Posts: 1,634
Likes: 1,066
From: Chattanooga tn
Drifting
Joined: Feb 2000
Posts: 1,917
Likes: 109
From: Crystal lake Il
2022 Corvette of the Year Winner -- Modified
2021 C4 of the Year - Modified Winner
GM does a nice job giiving you room to access them, you need 10mm long and short 1/4 inch drives , a swivel for a few, trim removal fool for the christmas tree fastners(dont pry too hard) and a fuel line disconnect for the emissions hose quick disconnect
Drivers side rear is the worst to access you have to slide under some hoses to access.
Removing it was easier than the air intake ....11 ft lbs to reinstall
Drivers side rear is the worst to access you have to slide under some hoses to access.
Removing it was easier than the air intake ....11 ft lbs to reinstall
Burning Brakes
Joined: Oct 2019
Posts: 837
Likes: 524
From: Colorado Springs
Somewhat related, but I’m planning to remove the IM and have a chop paint it. While there, I was asked if the valve covers could be pulled and painted too. I may try, but not sure if its worth the effort….
Drifting
Joined: Feb 2008
Posts: 1,634
Likes: 1,066
From: Chattanooga tn
Thread Starter
Heel & Toe
Joined: Apr 2026
Posts: 23
Likes: 14
Melting Slicks
Joined: Mar 1999
Posts: 3,081
Likes: 955
From: Apex NC
Cruise-In II Veteran
Cruise-In III Veteran
Let us know how long the removal and re install takes.. and hardness level for a DIY on a 1 to 10 scale with 10 being hardest.. curious about this myself, thanks
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Racer
Joined: Jan 2025
Posts: 376
Likes: 168
From: North Carolina
This process is a 4 of 10 at most difficulty. PIA rating is closer to 8 of 10.
Took 6 hours (roughly) the first time and 2 hours end to end the second time (following Brandon's direction video above).
Much easier than replacing the intake, but would replace the intake and TBs while youre there (youre already doing the work). If hi flow cats or cat deletes are your thing, this would be the time as well.
I used hand tools the first time, but the Milwaukee impact wrench used by Brandon is what i ended up huying and it saved me hours of work.
Took 6 hours (roughly) the first time and 2 hours end to end the second time (following Brandon's direction video above).
Much easier than replacing the intake, but would replace the intake and TBs while youre there (youre already doing the work). If hi flow cats or cat deletes are your thing, this would be the time as well.
I used hand tools the first time, but the Milwaukee impact wrench used by Brandon is what i ended up huying and it saved me hours of work.
Pro Mechanic
Joined: Oct 1999
Posts: 3,918
Likes: 1,461
From: South-Central Coast California
Anyone can access GM Service Information (GMSI), the web-based "shop manuals" GM dealers use. You can buy a subscription at the ACDelco Technical Delivery System (TDS) site. Scroll down to the "Service Information" heading. A three-day subscription is 22 bucks. Monthly and Yearly subs. are also available.
In GMSI, you'll find comprehensive instructions on pulling the intake off an LT6
In GMSI, you'll find comprehensive instructions on pulling the intake off an LT6
Racer
Joined: Jan 2025
Posts: 376
Likes: 168
From: North Carolina
It's 8 bolts and not rocket science. The challenge is the narrow space and combination of extensions and joints that a service manual won't address
Anyone can access GM Service Information (GMSI), the web-based "shop manuals" GM dealers use. You can buy a subscription at the ACDelco Technical Delivery System (TDS) site. Scroll down to the "Service Information" heading. A three-day subscription is 22 bucks. Monthly and Yearly subs. are also available.
In GMSI, you'll find comprehensive instructions on pulling the intake off an LT6
In GMSI, you'll find comprehensive instructions on pulling the intake off an LT6
Drifting
Joined: Feb 2008
Posts: 1,634
Likes: 1,066
From: Chattanooga tn
Thread Starter
Heel & Toe
Joined: Apr 2026
Posts: 23
Likes: 14
Thread Starter
Heel & Toe
Joined: Apr 2026
Posts: 23
Likes: 14
Thread Starter
Heel & Toe
Joined: Apr 2026
Posts: 23
Likes: 14
Drifting
Joined: Feb 2008
Posts: 1,634
Likes: 1,066
From: Chattanooga tn
Racer
Joined: Jan 2025
Posts: 376
Likes: 168
From: North Carolina
Drifting
Joined: Feb 2008
Posts: 1,634
Likes: 1,066
From: Chattanooga tn
no sanding. Clean and degrease only. He doesn’t have his paint shop sand either or didn’t when I showed him how to do it all. The blue manifold above had no sanding and perfect coverage. A few colors don’t adhere as well but it’s more of a thin paint thing.