Stock Trunnions
Thread Starter
Heel & Toe
Joined: Feb 2022
Posts: 22
Likes: 3
From: North Jersey
Stock Trunnions
I have a 2000 Corvette that’s in very good shape with about 104,000 miles on it. A friend of mine has a C6, he recently had to replace/upgrade the trunnions due to damage. He is adamant about me checking my trunnions saying that the stock ones are a known issue and to see if they are “walking out”. Another friend of mine with many years of Corvette experience said absolutely not. There is no reason to. Any suggestions/advice?? Thanks in advance.
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I have a 2000 Corvette that’s in very good shape with about 104,000 miles on it. A friend of mine has a C6, he recently had to replace/upgrade the trunnions due to damage. He is adamant about me checking my trunnions saying that the stock ones are a known issue and to see if they are “walking out”. Another friend of mine with many years of Corvette experience said absolutely not. There is no reason to. Any suggestions/advice?? Thanks in advance.
Melting Slicks
Joined: Apr 2021
Posts: 2,191
Likes: 82
Nice i was looking into doing the trunion upgrade as well before needles do fall apart and damage a corvette engine. I never had a problem with the rockers on a z28 ls1 from 119k-169k miles with manley dual springs, titanium retainers, cam and turbo kit under 550whp spinning to 6600rpm. On forced induction im not sure if the 6600rpm is as hard as a long winding cammed 6600.
Melting Slicks
Joined: Feb 2001
Posts: 2,804
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From: Northville, MI
We had a club member, worked at GM, and the performance group wanted to look at his engine (2002 Z) after 10 years of running and over 200,000 miles that had over 100 autocross runs per year and 2 to 5 HPDE's per year. It was his only car and daily driver. They were amazed at how great a shape the engine and drive train were with that type of ownership. He did religiously change the oil and filter every 3-4,000 miles.
No Hostility Be Happy
Joined: Aug 2018
Posts: 10,097
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From: South Hill Wa
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2021 C5 of the Year Finalist - Modified
Call it "sloppy mechanics" or whatever you want. I am not sold on the whole trunnion fear thing. It is IMO a very rare failure vs the number of LS based engines on earth.
Sometimes I think you have a better chance of an oil pump failure on LS engines which does in fact happen sometimes but no one seems to worry about that lol.
I agree with grinder though. Do your homework if you decide to go to bushings.
Sometimes I think you have a better chance of an oil pump failure on LS engines which does in fact happen sometimes but no one seems to worry about that lol.
I agree with grinder though. Do your homework if you decide to go to bushings.
Racer
Joined: Nov 2014
Posts: 405
Likes: 34
From: Forest Hills, New York
The whole trunion upgrade is for modified hp engines only. stock engine is fine.
check out my thread,
https://www.corvetteforum.com/forums...post1604715081
check out my thread,
https://www.corvetteforum.com/forums...post1604715081
Thread Starter
Heel & Toe
Joined: Feb 2022
Posts: 22
Likes: 3
From: North Jersey
Thanks for the advice. Much appreciated! Yeah my friend with the C6 his car is all modified and ****. I really think that is why he had issues with the trunnions. Mine is stock.. i think it’s better to just leave them alone.
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