LS4 Performance Grand Prix GXP | Monte Carlo SS | Impala SS | LaCrosse Super

stock spring load

Thread Tools
 
Search this Thread
 
Old Oct 24, 2008 | 06:12 PM
  #1  
mixerda's Avatar
Thread Starter
On The Tree
 
Joined: Aug 2007
Posts: 130
Likes: 0
From: Austin Tx.
Default stock spring load

does anyone know what the stock spring load is rated to be?

I had my stock springs tested here are the results

90lbs @ 1.8"
265lbs @ 1.2"

said that they are about 20lbs low

comp cam 918's are

130lbs @ 1.8"
318lbs @ 1.2"

Kinda makes me wonder if weak springs did lead to the valve float issues that resulted in the bent valves. If so would I have a valid case against GM to request price of parts plus labor back for the work I had done?
Reply
Old Oct 24, 2008 | 06:41 PM
  #2  
Sint3k's Avatar
TECH Fanatic
 
Joined: Jun 2007
Posts: 1,316
Likes: 3
From: Dolla$ , TX
Default

Originally Posted by mixerda
does anyone know what the stock spring load is rated to be?

I had my stock springs tested here are the results

90lbs @ 1.8"
265lbs @ 1.2"

said that they are about 20lbs low

comp cam 918's are

130lbs @ 1.8"
318lbs @ 1.2"

Kinda makes me wonder if weak springs did lead to the valve float issues that resulted in the bent valves. If so would I have a valid case against GM to request price of parts plus labor back for the work I had done?

I duno what they told u but if my **** was under warranty and they refused to fix a problem i woulda left the fuqin car there and then called GM and broke loose hell on all them *******.
Reply
Old Oct 24, 2008 | 06:57 PM
  #3  
mixerda's Avatar
Thread Starter
On The Tree
 
Joined: Aug 2007
Posts: 130
Likes: 0
From: Austin Tx.
Default

more or less I didn't care, I've been looking for a reason to upgrade the car and this gave me the reason to do it.

Now the stock springs may have been a leading cause as to the complete failure of the system. If there is viable proof that this was a definitive cause I might be able to get the 2300 they were gonna charge me to do the valve job and call it even. I honestly don't give a rats *** about it the money has already been spent and I am happy with the car and how it performs now. If I can get 2300 out of them just means 2300 more I can dump into the car for something else like a tranny upgrade .
Reply
Old Oct 24, 2008 | 07:47 PM
  #4  
neilownz's Avatar
TECH Fanatic
 
Joined: May 2008
Posts: 1,769
Likes: 0
From: Fargo, ND
Default

just another reason for everyone to upgrade their valvetrain.
Reply




All times are GMT -5. The time now is 12:53 AM.

story-0
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-1
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-2
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-3
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-4
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-5
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-6
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-7
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE
story-8
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE
story-9
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

Slideshow: The 7.0-liter LS7 was designed for absolute cutting-edge performance.

By Verdad Gallardo | 2026-01-07 18:36:00


VIEW MORE