Head Problem
Thread Starter
Instructor
Joined: Jul 2018
Posts: 216
Likes: 36
From: Frisco, TX
Head Problem
Hi All:
I currently have a '95 Lingenfelter, but looking to get into a C6. In many of the For Sale ads, I see questions on whether the heads have been fixed. I can't find any details in the forum on exactly what the problem is, and what years are affected. Can someone give me a quick lesson?
Thanks,
Nick
I currently have a '95 Lingenfelter, but looking to get into a C6. In many of the For Sale ads, I see questions on whether the heads have been fixed. I can't find any details in the forum on exactly what the problem is, and what years are affected. Can someone give me a quick lesson?
Thanks,
Nick
Le Mans Master
Joined: Jan 2017
Posts: 6,139
Likes: 1,962
From: Morris County New Jersey
It has to do with the 7 liter motor found in the Z06 and a few C6 427 Covertibles. The motors are known to drop a valve. Check out the Z06 section of the forum for more information or do a search for dropped valves.
Last edited by TorchRedFred; Apr 22, 2020 at 11:39 AM. Reason: Corrected info
Race Director
Joined: Dec 2002
Posts: 10,467
Likes: 1,149
From: Wayne Township WI
Hi All:
I currently have a '95 Lingenfelter, but looking to get into a C6. In many of the For Sale ads, I see questions on whether the heads have been fixed. I can't find any details in the forum on exactly what the problem is, and what years are affected. Can someone give me a quick lesson?
I currently have a '95 Lingenfelter, but looking to get into a C6. In many of the For Sale ads, I see questions on whether the heads have been fixed. I can't find any details in the forum on exactly what the problem is, and what years are affected. Can someone give me a quick lesson?
Allegedly valve geometry wasn't quite right causing premature valve guide wear.
Valve breaks, gets ingested ventilating block. Game over. New LS7. Very expensive LS7.
Fix has to date been rebuild heads w/ new guides, had it done on my '08, first owner.
No other LS series had/have prevalent issues w/ heads, until a lifter fails anyway.
Le Mans Master
Joined: Jan 2017
Posts: 6,139
Likes: 1,962
From: Morris County New Jersey
Correction to my post above, the 7.0 liter LS7 was available in the C6 427 convertible. They were a stand alone model and not considered a Z06 or a GS. (Someone please correct me if I have that wrong)
Last edited by TorchRedFred; Apr 22, 2020 at 11:39 AM.
Le Mans Master
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From: Rural NW Georgia. GO DAWGS!
2024 C8 of the Year Finalist - Unmodified
There is also a class action lawsuit going on somewhere in the country against GM that was filed by LS7 owners. A Judge won’t issue class action unless he/she doesn’t think their claim was valid. Good luck finding a car!
