[Z06] Valve Spring Replacement
Thread Starter
Instructor
Joined: Oct 2012
Posts: 138
Likes: 0
From: Monroe NC
Valve Spring Replacement
Hi. My 03 z06 has stock springs to my knowledge, and 46k miles. Ive been reading about springs breaking and want to upgrade. Are these suitable?
http://www.pcmofnc.com/index.php?opt...=35&Itemid=106
http://www.pcmofnc.com/index.php?opt...=35&Itemid=106
Melting Slicks
Joined: Jul 2010
Posts: 3,355
Likes: 113
From: Los Angeles
No, you don't want dual springs with the stock cam - you want beehive springs. PAC 1518 are a good option if you need to replace them. What's the last 5 digits of your VIN? With a 2003 model, you're really only at risk if it's less than 09000.
Thread Starter
Instructor
Joined: Oct 2012
Posts: 138
Likes: 0
From: Monroe NC
So these are more suitable?
https://sdparts.com/details/scoggin-...center/pac1518
My last 5 are 14738.
https://sdparts.com/details/scoggin-...center/pac1518
My last 5 are 14738.
Race Director
Joined: May 2004
Posts: 15,866
Likes: 196
From: PA
I replaced my stock springs at 40k on my 03 with the new LS2 blue springs. For a stock cam with mild bolt ons I think they're fine. Best insurance policy for the money for your ls6. 
Last edited by MY03C5Z; Nov 15, 2012 at 07:42 AM.
Former Vendor
Joined: Jan 2007
Posts: 1,584
Likes: 17
From: Lubbock Tx
So these are more suitable?
https://sdparts.com/details/scoggin-...center/pac1518
My last 5 are 14738.
https://sdparts.com/details/scoggin-...center/pac1518
My last 5 are 14738.
https://sdparts.com/details/pac-racing/pac1218
I wouldn't have any personal hangups to using the newest stock replacement LS6 springs (now blue instead of yellow) either.
https://sdparts.com/details/gm-perfo...parts/12499224
Instructor
Joined: Jan 2011
Posts: 174
Likes: 0
From: Seattle WA
For the piece of mind, I just had my valve springs replaced with new (blue) OEM LS6 springs.
I was going to order a set of PAC springs, but realized that when/if I decide to upgrade the cam, I would be replacing valve springs anyway, no matter what springs I had in there. So for now, I couldn't justify spending the extra money on PAC/aftermarket springs if I may be doing a cam swap later on.
I was going to order a set of PAC springs, but realized that when/if I decide to upgrade the cam, I would be replacing valve springs anyway, no matter what springs I had in there. So for now, I couldn't justify spending the extra money on PAC/aftermarket springs if I may be doing a cam swap later on.
Le Mans Master
Joined: May 2007
Posts: 5,393
Likes: 17
From: Belleville Mich.
For the piece of mind, I just had my valve springs replaced with new (blue) OEM LS6 springs.
I was going to order a set of PAC springs, but realized that when/if I decide to upgrade the cam, I would be replacing valve springs anyway, no matter what springs I had in there. So for now, I couldn't justify spending the extra money on PAC/aftermarket springs if I may be doing a cam swap later on.
I was going to order a set of PAC springs, but realized that when/if I decide to upgrade the cam, I would be replacing valve springs anyway, no matter what springs I had in there. So for now, I couldn't justify spending the extra money on PAC/aftermarket springs if I may be doing a cam swap later on.
Thanks 02blackLS6 for the reply.
$450. total is a very fair price .
Last edited by bumble-z; Nov 18, 2012 at 01:35 PM.
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Instructor
Joined: Jan 2011
Posts: 174
Likes: 0
From: Seattle WA
It all depends where you live. Labor rates seem to be higher in CA than the rest of the country. My grand total was around $450 (parts+labor+tax). That is with all new OEM parts: LS6 valve springs, valve seals and valve cover gaskets.
My local Chevy stealership quoted me $800-$900 (parts+labor) for just replacing the valve springs.... I thought this was a little ridiculous.
My local Chevy stealership quoted me $800-$900 (parts+labor) for just replacing the valve springs.... I thought this was a little ridiculous.
Last edited by 02blackLS6; Nov 18, 2012 at 06:20 PM.
