Notices
C5 General General C5 Corvette and C5 Z06 Discussion not covered in Tech

[Z06] Stock LS6 Valve Train Part Failures

Thread Tools
 
Search this Thread
 
Old May 16, 2011 | 03:40 AM
  #1  
ZeeOSix's Avatar
ZeeOSix
Thread Starter
Le Mans Master
20 Year Member
 
Joined: Mar 2002
Posts: 5,955
Likes: 161
From: PNW
Default Stock LS6 Valve Train Part Failures

Most here know the valve springs are a weak point in the 2002~2003 LS6. Most who know have probably already upgraded the valve springs to prevent a spring failure.

So I was wondering if anyone has experienced, or has heard of failures in the stock push rods or stock rocker arms.

If the stock cam is used, is it a waste of money to upgrade the push rods and/or rocker arms along with the valve springs if the car has no track use and is just driven hard occasionally on the street?

I'm looking for realistic logic to upgrade beyond the valve springs if the stock cam is used. Thoughts or advice ... ???

Last edited by ZeeOSix; May 16, 2011 at 03:44 AM.
Reply
Old May 16, 2011 | 09:18 AM
  #2  
4SFED Z's Avatar
4SFED Z
Melting Slicks
 
Joined: Jun 2007
Posts: 2,704
Likes: 4
From: Lone Star State
Default

Originally Posted by ZeeOSix
Most here know the valve springs are a weak point in the 2002~2003 LS6. Most who know have probably already upgraded the valve springs to prevent a spring failure.

So I was wondering if anyone has experienced, or has heard of failures in the stock push rods or stock rocker arms.

If the stock cam is used, is it a waste of money to upgrade the push rods and/or rocker arms along with the valve springs if the car has no track use and is just driven hard occasionally on the street?

I'm looking for realistic logic to upgrade beyond the valve springs if the stock cam is used. Thoughts or advice ... ???

Upgrade the valvesprings, yes. Rocker arms and push rods, dont have to. This is just my opinion
Reply
Old May 16, 2011 | 12:31 PM
  #3  
skyavonee's Avatar
skyavonee
Melting Slicks
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2010
Posts: 3,355
Likes: 113
From: Los Angeles
Default

Originally Posted by NastyZ
Upgrade the valvesprings, yes. Rocker arms and push rods, dont have to. This is just my opinion
Never heard of anyone having problems with rods or rockers on a stock cam. In fact, it seems that many with aftermarket cam/springs/rods are still running the stock rockers.
Reply
Old May 16, 2011 | 01:11 PM
  #4  
ZeeOSix's Avatar
ZeeOSix
Thread Starter
Le Mans Master
20 Year Member
 
Joined: Mar 2002
Posts: 5,955
Likes: 161
From: PNW
Default

Originally Posted by skyavonee
Never heard of anyone having problems with rods or rockers on a stock cam. In fact, it seems that many with aftermarket cam/springs/rods are still running the stock rockers.
I think there was a TSB on the rocker arms losing needle bearings for just the 2001 LS6, but I believe the problem was corrected before 2002+ production.

Guess I'll checkout my stock pushrods for any bends when I tear it apart and decide from there on an upgrade. Sounds like the stock components (except springs) should be OK for the stock cam.

Anyone else have inputs? ... if so, I'd still like to hear them.
Reply
Old May 16, 2011 | 01:12 PM
  #5  
4SFED Z's Avatar
4SFED Z
Melting Slicks
 
Joined: Jun 2007
Posts: 2,704
Likes: 4
From: Lone Star State
Default

Originally Posted by ZeeOSix
I think there was a TSB on the rocker arms losing needle bearings for just the 2001 LS6, but I believe the problem was corrected before 2002+ production.

Guess I'll checkout my stock pushrods for any bends when I tear it apart and decide from there on an upgrade. Sounds like the stock components (except springs) should be OK for the stock cam.

Anyone else have inputs? ... if so, I'd still like to hear them.
you got it! you will be fine
Reply
Old May 16, 2011 | 04:52 PM
  #6  
zeevette's Avatar
zeevette
Race Director
 
Joined: Sep 2005
Posts: 11,060
Likes: 291
From: Pasco WA
Default

I also heard several reports of disintegrating stock rocker arms. AFAIK, it wasn't limited to just '01Zs, either.
Reply
Old May 17, 2011 | 02:36 AM
  #7  
mph1972's Avatar
mph1972
Race Director
Supporting Lifetime
20 Year Member
 
Joined: Apr 2004
Posts: 16,135
Likes: 5
From: Newberry FL
Cruise-In VIII Veteran
St. Jude Donor '07
Default

I have heard on many occasions that the stock rocker arms are a decent little rocker arms. I have ran them on both of my modded cars and never had one issue.

The stock push rods are fine if you are upgrading just your valve springs, but if you are doing a cam swap or more, might as well spend an extra $120.

Last edited by mph1972; May 18, 2011 at 12:29 PM.
Reply
Old May 17, 2011 | 01:11 PM
  #8  
Milan's Avatar
Milan
Safety Car
15 Year Member
All Eyes On Me
Photogenic
Liked
 
Joined: Jan 2008
Posts: 4,797
Likes: 52
From: Boise
Default

I broke a stock rocker arm, switched to Yella Terras after that.

Now I also added PAC springs and Trick Flow push rods
Reply

Get notified of new replies

To Stock LS6 Valve Train Part Failures

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

5 Best & 5 Most Overrated Corvette Track Packages of All Time!

 Joe Kucinski
story-1

Every 2027 Corvette Engine Explained

 Joe Kucinski
story-2

Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

 Verdad Gallardo
story-3

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-4

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-5

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-6

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-7

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-8

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-9

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer




All times are GMT -4. The time now is 02:32 PM.

story-0
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-1
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-2
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-3
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-4
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-5
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-6
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-7
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-8
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-9
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE