valve spring failure results...
listen predator-z,i ain't complaining...**** breaks...you well know regardless of recommended this or that,part failures occur...
i have no problems replacing the springs with another set of comp springs...here is another picture for you to mull over from your throne...
http://img266.imageshack.us/img266/8...4medium5by.jpg
i have no problems replacing the springs with another set of comp springs...here is another picture for you to mull over from your throne...
http://img266.imageshack.us/img266/8...4medium5by.jpg
That's not a very good suggestion. I would never tell someone to install something and forget about it. That's probably the main cause of things breaking is lack of proper maintenence. That or installation error which the OP hasn't responded to.
Its an ok idea on a 600 and below lift, 230 duration cam with dual springs, I havent even looked at mine till 20K and theyre fine, plus there are 2 springs to protect the motor in the event one breaks. There isnt **** to maintain on a set of springs anyway.
I agree to an extent, but there have been plenty of threads on here where people had no idea what was wrong with their cars or had no problems at all. They pull the valve covers and find tons of broken spings.
that's what happend to mine. I had no idea they were broken. I had 8 broke with 571/573 lift
TECH Addict
Joined: Nov 2005
Posts: 2,379
Likes: 2
wouldn't that leave SOME kind of debris with the next oil change? Also, the noise characteristic of the valvetrain would change along with some shitty running of the car once a few break, let alone 8.
Not sure about those people, but I expect a particular valvetrain note and sound to come from my engine bay. A single busted spring would really mess that harmony... every start I listen to it in my garage for unexpected sounds. I hear something out of the ordinary, the engine shuts off unless I know what that noise is...
Not sure about those people, but I expect a particular valvetrain note and sound to come from my engine bay. A single busted spring would really mess that harmony... every start I listen to it in my garage for unexpected sounds. I hear something out of the ordinary, the engine shuts off unless I know what that noise is...
Staging Lane
Joined: Oct 2006
Posts: 83
Likes: 0
From: Iowa
Couple of basic questions regarding the spring failure:
1. How did you know there was a problem in the first place? In other words, what did you hear or feel that told you to check and see if one of the springs had failed?
2. When a valve spring fails like this, what other problems could have occured along with it?
1. How did you know there was a problem in the first place? In other words, what did you hear or feel that told you to check and see if one of the springs had failed?
2. When a valve spring fails like this, what other problems could have occured along with it?
wouldn't that leave SOME kind of debris with the next oil change? Also, the noise characteristic of the valvetrain would change along with some shitty running of the car once a few break, let alone 8.
Not sure about those people, but I expect a particular valvetrain note and sound to come from my engine bay. A single busted spring would really mess that harmony... every start I listen to it in my garage for unexpected sounds. I hear something out of the ordinary, the engine shuts off unless I know what that noise is...
Not sure about those people, but I expect a particular valvetrain note and sound to come from my engine bay. A single busted spring would really mess that harmony... every start I listen to it in my garage for unexpected sounds. I hear something out of the ordinary, the engine shuts off unless I know what that noise is...
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0
Brett Foote
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever
Verdad Gallardo I'll answer, I was changing to longer pushrods and just happen to notice that the top coil on one spring looked like it had a crack and yes after I dropped the oil after changing to the dual springs I did see just a little metal on the magnet My failure wasn't like this though
Wow so after installing a cam in one of our cars you have to change valve springs every 15k miles? I used to have a 355 with a 580 lift hyd roller cam. The cam was a doug herbert cam and I used comp double springs that were good for up to a 650 lift I really can't remember for sure on the spring pressure but i think it was arround 240 and I put well over 40000 miles on that engine before I sold the car and last time I heard they were still running it with out and problems but that wasn't an ls1.
Thread Starter
Launching!
Joined: Oct 2006
Posts: 202
Likes: 0
TECH Senior Member
iTrader: (3)
Joined: Apr 2006
Posts: 6,524
Likes: 1
From: Western Burbs of Detroit
Wow bro that sucks !! I run comp 921 dual valve springs for piece of mind. My cam is in the .6xx/.6xx 23x/24x range. I have about 7k miles on them now and will be testing them mid summer and replacing next year.
Wow so after installing a cam in one of our cars you have to change valve springs every 15k miles? I used to have a 355 with a 580 lift hyd roller cam. The cam was a doug herbert cam and I used comp double springs that were good for up to a 650 lift I really can't remember for sure on the spring pressure but i think it was arround 240 and I put well over 40000 miles on that engine before I sold the car and last time I heard they were still running it with out and problems but that wasn't an ls1.
They both do. If you have an extreme ramp rate it's going to slam the valves open and closed as compared to a taimer version where it will open and close them more gradually.
agree 110% 
