[Z06] Valve spring failure

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Apr 25, 2014 | 10:16 AM

Kins13y

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Valve spring failure

Found out my Z06 suffered the dreaded valve spring failure. Turns out I got lucky and the valve didn't drop. The shop I have it at said I'm about the luckiest person they have seen.

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Apr 25, 2014 | 10:47 AM

LuckySon

Heel & Toe

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From: Denver Colorado

Very lucky it sounds like!

Hope to have mine replaced soon as a preventative measure. Scary.

Apr 25, 2014 | 11:08 AM

Kins13y

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Quote:

Originally Posted by LuckySon

Very lucky it sounds like!

Hope to have mine replaced soon as a preventative measure. Scary.

After mine failing I would have to say that it is a must haha.

Apr 25, 2014 | 11:31 AM

MY03C5Z

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From: PA

Looks like you were very lucky. Original springs I assume? What year?

Apr 25, 2014 | 12:31 PM

Kins13y

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Stock springs as far as I know. I have owned since last September, its an 02' with 82,000 miles.

Apr 25, 2014 | 01:50 PM

MY03C5Z

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From: PA

Many of the stock springs were yellow, 02's were at the biggest risk of failure along with early model year 03's, which mine was. Replaced mine shortly after buying it two years ago.

Apr 25, 2014 | 02:22 PM

93civEJ1

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From: Knox TN

My 01 stock springs are blue.

Apr 25, 2014 | 02:32 PM

pit-man

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From: Orange Park FL

You are lucky. My failure cost $11k...however that replacement has been great. A 383 stroker and new clutch.

Went from mid 11's to mid 10's

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Apr 25, 2014 | 03:06 PM

MY03C5Z

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From: PA

Quote:

Originally Posted by 93civEJ1

My 01 stock springs are blue.

Did you buy the car in the last few years? If so they probably have been replaced. The GM ls2/3 replacement springs are blue. Thats what color mine were I ordered from GM parts warehouse.

Apr 25, 2014 | 08:08 PM

#10

skyavonee

Melting Slicks

Joined: Jul 2010

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From: Los Angeles

Quote:

Originally Posted by Kins13y

Stock springs as far as I know. I have owned since last September, its an 02' with 82,000 miles.

Last 5 digits of VIN?

Apr 25, 2014 | 08:16 PM

#11

skyavonee

Melting Slicks

Joined: Jul 2010

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From: Los Angeles

Quote:

Originally Posted by pit-man

You are lucky. My failure cost $11k...however that replacement has been great. A 383 stroker and new clutch.

Went from mid 11's to mid 10's

I don't have you on the master list. If your engine was stock when the valve spring failed, can you also post or PM me the last 5 digits of your VIN?

Apr 25, 2014 | 08:17 PM

#12

apollo240

Racer

Joined: Sep 2011

Posts: 337

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From: Orlando Florida

How are your driving habits? Ive heard this can be a factor?

Apr 25, 2014 | 08:54 PM

#13

Z06ness03

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From: Bristol CT

Good time to upgrade to beehives with titanium retainers and chromoly push rods.

Apr 25, 2014 | 09:11 PM

#14

racebum

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Joined: Jan 2008

Posts: 16,028

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From: oregon

Quote:

Originally Posted by MY03C5Z

Did you buy the car in the last few years? If so they probably have been replaced. The GM ls2/3 replacement springs are blue. Thats what color mine were I ordered from GM parts warehouse.

stock 01 springs were actually blue from the factory

not the same spring as the new ls2/ls6 springs we use to replace

Apr 27, 2014 | 04:13 PM

#15

Kins13y

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I don't have the VIN available right now. Turns out I must have been lucky. I have my fun with the car but I don't tend to race it. It's now getting new valve springs, a tune, and longtubes/xpipe from Texas Speed.

Apr 28, 2014 | 07:19 AM

#16

RED02Z

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Joined: Apr 2014

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What kind of spring do you replace with??

Apr 28, 2014 | 08:53 AM

#17

rjwz28

Safety Car

Joined: Sep 2007

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From: Sunniest city on Earth

I had a PRC dual valvespring break on my Z06 when it had the MS3... fortunately the other coil held things together until we figured it out. It was floating valves on the dyno at only 5200rpm or so, and still made 360rwhp in spite of the problem.

Apr 28, 2014 | 09:37 AM

#18

Kins13y

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I don't know the exact valve springs as I ordered them through a local shop but its PRC stuff. I plan to get it figured out but it will probably be a little while this particular shop is very busy.

Apr 28, 2014 | 09:41 AM

#19

RED02Z

Instructor

Joined: Apr 2014

Posts: 196

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Quote:

Originally Posted by Kins13y

I don't know the exact valve springs as I ordered them through a local shop but its PRC stuff. I plan to get it figured out but it will probably be a little while this particular shop is very busy.

If you would, when you find out what they are... Post them on here please. Thank you Sir.