I am thinking about buying a 2010-13 Corvette GS
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Joined: Mar 2019
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From: Chapel Hill, N.C.
I am thinking about buying a 2010-13 Corvette GS
and would like to ask if there are any particular problems with these cars. Any persistent maintenance issues or problems? Thanks in advance.
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Feb 8, 2026, 01:57 PM
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Instructor
Joined: Feb 2018
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From: Sparks Nevada
I've had two...2011 with 130K miles and a "new"2013 with ~40K miles. I can tell you there are several things you will want to keep an eye on:
1. Harmonic balancer
2. factory rocker arms have unsealed needle bearings and they will, with time and mileage wear out. When they do, they puke those little needle bearings into the engine which make beautiful FOD. This is a known problem for LS3s as they age.
3. Valve springs as noted.
Love C6 Grand Sports... probably on of the better Vettes ever made.
1. Harmonic balancer
2. factory rocker arms have unsealed needle bearings and they will, with time and mileage wear out. When they do, they puke those little needle bearings into the engine which make beautiful FOD. This is a known problem for LS3s as they age.
3. Valve springs as noted.
Love C6 Grand Sports... probably on of the better Vettes ever made.
Burning Brakes
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From: Ivanho,Illinois
2025 C6 of the Year Finalist - Modified
Pro
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From: Virginia
Just pull the valve covers off. Its a simple task, anyone with basic knowledge and mechanical skills can do so in 15-20 minutes. Pull the plastic cover off one side, disconnect the 4 plug wires and remove the coil pack/rail off the aluminum valve cover and then remove the few bolts that hold the valve cover on. Very simple. Also not something you should worry about immediately. Its not a Z06 with the LS7s with the notorious head issues...the Grandsport is a LS3, one of the most reliable engines GM has ever built.
Burning Brakes
Joined: Dec 2018
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From: Ivanho,Illinois
2025 C6 of the Year Finalist - Modified
Just pull the valve covers off. Its a simple task, anyone with basic knowledge and mechanical skills can do so in 15-20 minutes. Pull the plastic cover off one side, disconnect the 4 plug wires and remove the coil pack/rail off the aluminum valve cover and then remove the few bolts that hold the valve cover on. Very simple. Also not something you should worry about immediately. Its not a Z06 with the LS7s with the notorious head issues...the Grandsport is a LS3, one of the most reliable engines GM has ever built.
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Drifting
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Anyway, the "check your valve spring" was more of an after-purchase comment. its prob not going to drop on the drive home, but OP should definitely pop a VC off after getting it home to check and swap.
CF Community Team
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From: Pittsburgh
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The LS3 is bullet proof & the wide body C6’s are at the top of the heap for body styles across all generations
Le Mans Master
Joined: Aug 2006
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From: San Antonio, TX
So to get the thread back on track, let me ask you questions:
- What color are you looking for? or stated differently what is your first color choice
- Manual or Automatic
- Coupe or Convertible
- what is the major purpose of the car? daily driver? weekend toy? drag race or auto cross ? garage queen or car show ?
Race Director
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From: Melbourne, FL
Race Director
Joined: Oct 2012
Posts: 17,317
Likes: 6,500
From: Melbourne, FL
CF Community Team
Joined: Apr 2016
Posts: 14,090
Likes: 7,391
From: Pittsburgh
2025 C6 of the Year Finalist - Unmodified
2024 C6 of the Year Finalist - Unmodified
2023 C6 of the Year Finalist - Unmodified
2022 C6 of the Year Finalist - Unmodified
2021 C6 of the Year Finalist - Unmodified
Last edited by 449er; Feb 8, 2026 at 02:19 PM.