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2002 Z06 valve spring advice

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Old Jan 20, 2013 | 03:07 PM
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Default 2002 Z06 valve spring advice

I have a 2002 Z06 with a little over 51,000 miles on it and, before I do any other modifications to it, I think it would be wise to change out the valve springs.

I was wondering if there were any other changes I should do while I am at it. Replace spark plugs and plug wires? Upgrade to better roller type rockers?

I don't have an unlimited budget (realistically I'll probably have $1,300 to play with) so I can't go all out.

I sent an email to ECS using their "Contact Us" section on their website for an estimate but, have not heard anything back. Does anyone on this site have an idea of what I am looking at from a cost perspective?

Thanks
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Old Jan 20, 2013 | 03:19 PM
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Looks like your a little over an hours drive from ECS (you mentioned them)

Give Doug a call in the morning @ 609 752 0321

He will probably suggest plugs, wires, intake/exhaust seal & valve springs.

He set me up with some real nice Manley valve springs, when I did my change out a couple years ago.
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Old Jan 20, 2013 | 07:08 PM
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Originally Posted by 1996Z15
I have a 2002 Z06 with a little over 51,000 miles on it and, before I do any other modifications to it, I think it would be wise to change out the valve springs.

I was wondering if there were any other changes I should do while I am at it. Replace spark plugs and plug wires? Upgrade to better roller type rockers?

I don't have an unlimited budget (realistically I'll probably have $1,300 to play with) so I can't go all out.

I sent an email to ECS using their "Contact Us" section on their website for an estimate but, have not heard anything back. Does anyone on this site have an idea of what I am looking at from a cost perspective?

Thanks
You have one of the most reliable high performance production engines ever installed in a production sports car, leave it alone.
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Old Jan 20, 2013 | 08:02 PM
  #4  
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Since the general designed the LS engines for 250,000 miles I'd agree
that there is NO reason to mess with the yellow springs and after-
market rockers are usually heavier @ the valve and require dual valve
springs to stave off valve float. If you really need to spend 1300 bucks
I'd call EPS and look into a cam/push rods/spring kit....something like
my 218/226 would run fine on the stock tune and ultimately make 35-
40 more rear wheel horsepower whenever you can afford a dyno-tune.
I also get 30-33 mpgs with a M6/3.42 gear combo
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Old Jan 20, 2013 | 08:32 PM
  #5  
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From: Gastonia North Carolina
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Change springs, valve stem seals, and do the trunion upgrade. Parts $350 and labor $250.00

Either the comp 918 or pac 1512 beehive single type.

Change the valve springs before you have a failure
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Old Jan 20, 2013 | 09:44 PM
  #6  
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I say definitely change the valve springs for peace of mind. I did mine right after I bought my '02 with 50k miles. Did them myself, and it wasn't too difficult. I changed springs, seals, plugs and wires.

should have probably asked in the z06 subsection, though, since the regular c5 didn't have these issues.
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