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I had my mechanic install a clutch bleeder line, when I picked up my 'vette he showed me these springs from another C5 corvette he just worked on. I'm inclined to replace the stock springs in my '01 Z06 as I track it often. My quick research on the subject though suggests it the '02's and on that have the problem, is that right? Should I bother?
I believe the problem was mostly involving 02-03 cars. Something about the more aggressive cam profile being harder on the valvetrain. Do a quick search, there has been ALOT of data collected about failure years and VINs. For piece of mind, you could change them, but who knows if you'll have a problem in the future. My 04 is stock and I feel relatively safe, being that failure rates are very low in 2004.
The 01 IIRC is second danger zone behind 02-03. Tracking the car... I'd do it. I bought springs and all years ago for my 04 DD, haven't got to it yet. But I don't track it.
The 01 IIRC is second danger zone behind 02-03. Tracking the car... I'd do it. I bought springs and all years ago for my 04 DD, haven't got to it yet. But I don't track it.
Yeah, I blew the engine on my C3 on the track, it was an old custom stroker that got pushed too hard. The engine spends a lot of time 5-6K RPM, I don't wanna blow the thing.
The mechanic is ordering a more performance oriented spring kit to replace seals etc.
You're just a ways away from me, guessing you're tracking at Area 27? I'd love to, $ and time do not permit.
Hey you're welcome to come on down to the track as my guest and I'll take you for a spin! Here's the schedule for open members lapping days: http://www.area27.ca/events/
I bought the C5Z06 to chase my C7 loving wife around the track :-)
With the cost of new GM springs, I would replace them. Also worth noting, some work done by a known engine builder found the LS1/LS6 springs should be freshened at 70K miles or so as they have lost considerable stiffness at that point and may not be fully controlling the valves.
Hey you're welcome to come on down to the track as my guest and I'll take you for a spin! Here's the schedule for open members lapping days: http://www.area27.ca/events/
I bought the C5Z06 to chase my C7 loving wife around the track :-)
That's gotta be the best invite a guy could ask for! I'll PM you tomorrow. Cool shot BTW. I won't be chasing my wife around the track in her vehicle (Nissan Rogue).
I asked my mechanic for a decent value/performance springs. I don't need to go over the top. He suggested the PAC KS14 kit along with new push rods and valve cover gaskets.
With the cost of new GM springs, I would replace them. Also worth noting, some work done by a known engine builder found the LS1/LS6 springs should be freshened at 70K miles or so as they have lost considerable stiffness at that point and may not be fully controlling the valves.
I met the owner of the broken springs at the track yesterday. His is a 2001 Z06 and the spring did break at the track. So, my mechanic has my spring kit on order!
I met the owner of the broken springs at the track yesterday. His is a 2001 Z06 and the spring did break at the track. So, my mechanic has my spring kit on order!
Peter - I just got a 01 Z06. Did you end up going with the PAC-KS14 kit? All still good? Did you cam the car too? Thanks!
Peter - I just got a 01 Z06. Did you end up going with the PAC-KS14 kit? All still good? Did you cam the car too? Thanks!
You may want to PM him. Thread is 6 years old, and he hasn't been on the forum for almost 9 months. If I had to guess, I'd say he did go with it. I'll second PAC, they make great springs!!
IMO if this is a regular street car, I'd put in another set of GM springs on a stock cam. If you are planning any track events, I'd call BTR and likely go with a PAC bee hive again assuming stock cam.
08-23-2017, 09:42 AM
2001 Z06 - valve springs a problem?
