LS6 Valve Springs
Thread Starter
Drifting
Joined: Mar 2004
Posts: 1,504
Likes: 0
From: Byron Center MI
LS6 Valve Springs
I have a 2000 LS1 with 2004 LS6 heads, cam and intake.
I broke a valve spring going down the highway at 75MPH in 6th gear.
I have been doing a search and have read the LS6 valve spring is a ticking time bomb.
Some of the rocker trunions appear to be sloppy.
The car has 47,000 miles on it not sure how many miles on the heads.
I have 2 questions.
Are the LS6 springs prone to failure?
Are the rockers a problem also?
Thanks Tim
I broke a valve spring going down the highway at 75MPH in 6th gear.
I have been doing a search and have read the LS6 valve spring is a ticking time bomb.
Some of the rocker trunions appear to be sloppy.
The car has 47,000 miles on it not sure how many miles on the heads.
I have 2 questions.
Are the LS6 springs prone to failure?
Are the rockers a problem also?
Thanks Tim
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
I have seen several occasions where someone has reported a failure of the yellow Z06 valve springs. As for the rockers, this has been occasional as well but it does happen. I think as you push them harder with aftermarket parts you also increase the likelihood of a rocker failure.
Race Director
Joined: Oct 2002
Posts: 16,477
Likes: 26
From: Gone
CI 6-7-8-9-10 Veteran
St. Jude Donor '03
No GM head ever came stock with dual springs. Unsure what you are looking at, sounds like a modified version.
No matter, get a set of Comp 918s or PAC 1218s, swap the springs, and enjoy.
No matter, get a set of Comp 918s or PAC 1218s, swap the springs, and enjoy.
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Race Director
Joined: Oct 2002
Posts: 16,477
Likes: 26
From: Gone
CI 6-7-8-9-10 Veteran
St. Jude Donor '03
Weird...I googled that part #, and most links call it a dual spring, while picturing a beehive.
I think the confusion comes in because they are listing the I.D. dimensions for the bottom and top of the spring (which are different diameters with a beehive) but calling them inner spring and outer spring I.D. dimensions.
One official typo goes a long way on the 'net.
I think the confusion comes in because they are listing the I.D. dimensions for the bottom and top of the spring (which are different diameters with a beehive) but calling them inner spring and outer spring I.D. dimensions.
One official typo goes a long way on the 'net.
