[Z06] Z06 spring life?
Le Mans Master
Joined: Sep 2014
Posts: 5,278
Likes: 539
From: Kelowna BC
Assuming valve springs; mainly 02 and 03 Z's have the issue and should be replaced. The base model didn't have a high lift cam, no spring issues I'm aware of.
01 and 04 Z's have much less likelihood of breaking them.
01 and 04 Z's have much less likelihood of breaking them.
Melting Slicks
Joined: Aug 2013
Posts: 2,491
Likes: 315
St. Jude Donor '15-'16-'17-'18-'19-'20-'21-'22
The new stock springs are blue. If you are not going to mod your car, new stock springs are just fine. You may want to replace valve seals and spark plugs and wires at the same time.
Safety Car
Joined: Mar 2006
Posts: 3,538
Likes: 9
From: Pasadena, CA
Drifting
Joined: Aug 2008
Posts: 1,381
Likes: 11
If you are a normal human this is not possible, you need a head shaped like a bowling pin to see in through that hole. Pull a valve cover and you know for sure.
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Safety Car
Joined: Mar 2006
Posts: 3,538
Likes: 9
From: Pasadena, CA
Melting Slicks
Joined: Apr 2003
Posts: 2,150
Likes: 6
From: NS
Not sure why you say that because when I shine a flashlight down my oil filler I clearly see the side of one valve spring. No problem to see what color it is.
Drifting
Joined: Aug 2008
Posts: 1,381
Likes: 11
Burning Brakes
Joined: Feb 2005
Posts: 1,201
Likes: 14
From: Honolulu, HI
I went 70k on my 02's before I changed them due to cam change. Yes they were Yellow!
Others blew them up in no-time.
I'd still recommend changing them out, but don't lose sleep over it.
If it helps, I always let the oil warm up to at least 160 before I went over 4500ish rpm's.
Others blew them up in no-time.
I'd still recommend changing them out, but don't lose sleep over it.
If it helps, I always let the oil warm up to at least 160 before I went over 4500ish rpm's.
Last edited by dagon138; Jan 13, 2016 at 02:08 AM.
Thread Starter
Instructor
Joined: Sep 2013
Posts: 200
Likes: 13
From: TUCSON Arizona Territory
reasonable assumption
And some folks assume that the gun wasn't loaded.
An ounce of prevention...(wear a rubber)
Springs are cheap.
Head/piston/block repair is not.
I have blown-up enough stuff to know.
EPS
An ounce of prevention...(wear a rubber)
Springs are cheap.
Head/piston/block repair is not.
I have blown-up enough stuff to know.
EPS
Pro
Joined: Nov 2010
Posts: 741
Likes: 124
Thats so far from the truth. Usually 1 spring will fail and say bye bye motor no rhyme or reason. And if your lucky enough to not ruin your motor and bring it to a chevy dealership they will usually replace the 1 broken spring. The spring could look fine and not be broken on monday, you go for a quick ride on tuesday and bam broken spring game over. And you cant tell anything by looking at a spring as far as if its going to fail. Its not like you say "well its looks like a spring so it will be fine" Lol. Did you expect the spring to somehow talk to you and tell you " man im ready to break bro"! Lol. The oem springs have failed time and time again i could care less if they are yellow blue orange pink ect. Real simple solution and insurnace. On LS6 motors with a stock cam replace with PAC 1218 valve springs. Problem solved plain and simple.
Last edited by mainecobra; Jan 17, 2016 at 09:09 PM.
Drifting
Joined: Aug 2005
Posts: 1,686
Likes: 20
From: Florida, Hell's Doorstep
If you can't afford to replace your springs with a good DUAL spring like Patriot Gold Extremes or Pac's, the safest way to prevent "possibly some" spring failures is to let it idle until your oil temp get to 160* before taking off for a drive. It's not 100% , but it may help,,,,,,but not likely. The safest thing to do is to replace them with dual springs,stock motor or not.DO NOT trust your motor with a single spring set up. GM's new beehives , i don't trust them either,still made in China.They are all made in China! Get a good US manufactured DUAL spring. The inside spring on a dual insures no valve to piston damage should the outer spring fail. Cheap insurance and just common sense to me if you want to forget about the possibility of catastrophic engine destruction provided courteously of GM. IMO
DUAL is the word !
DUAL is the word !
Last edited by ONE BMF; Jan 18, 2016 at 11:16 AM.
Pro
Joined: Nov 2010
Posts: 741
Likes: 124
If you can't afford to replace your springs with a good DUAL spring like Patriot Gold Extremes or Pac's, the safest way to prevent "possibly some" spring failures is to let it idle until your oil temp get to 160* before taking off for a drive. It's not 100% , but it may help,,,,,,but not likely. The safest thing to do is to replace them with dual springs,stock motor or not.DO NOT trust your motor with a single spring set up. GM's new beehives , i don't trust them either,still made in China.They are all made in China! Get a good US manufactured DUAL spring. The inside spring on a dual insures no valve to piston damage should the outer spring fail. Cheap insurance and just common sense to me if you want to forget about the possibility of catastrophic engine destruction provided courteously of GM. IMO DUAL is the word !
DUAL is the word !Please tell me your kidding!!! This is not true in any fashion. You should not run a dual spring on a stock cam motor. You will have way to much seat pressure. You cant just throw a dual spring in bud you have to go with specs of your cam. Please do not give advice when you have zero clue what you are talking about. The issue is the quality of material used in 02-04 z06 springs. Normally they should never be a issue just as they are not a issue on 05 and up corvettes. So a dual spring is not needed and should not be used on a stock cam ls6. Like ive said many times on here. PAC 1218 beehive spring end of discussion.
Racer
Joined: Apr 2010
Posts: 389
Likes: 25
If you can't afford to replace your springs with a good DUAL spring like Patriot Gold Extremes or Pac's, the safest way to prevent "possibly some" spring failures is to let it idle until your oil temp get to 160* before taking off for a drive. It's not 100% , but it may help,,,,,,but not likely. The safest thing to do is to replace them with dual springs,stock motor or not.DO NOT trust your motor with a single spring set up. GM's new beehives , i don't trust them either,still made in China.They are all made in China! Get a good US manufactured DUAL spring. The inside spring on a dual insures no valve to piston damage should the outer spring fail. Cheap insurance and just common sense to me if you want to forget about the possibility of catastrophic engine destruction provided courteously of GM. IMO DUAL is the word !
DUAL is the word !