avisenna

Hi guys,

I just bought a C6Z in Velocity Yellow with 11.5k miles. Absolutely love the car I literally can’t stop driving it.

But I have a few questions regarding the whole valvetrain issue (it has me concerned).I’ve done a lot of digging on this site and other forums as well but didn’t see any definitive answer.

So given that the Z has been out for 10 years now, what is the current best course of action to prevent valvetrain problems(or a blown motor)?
-Should I just get aftermarket heads?
-Or should I get OEM heads reconditioned with new guides, etc.
-Or is there a 3rd option that I’m missing?

I don't mind spending money to have it done right. I just need guidance on which path to take to make sure the car is reliable and enjoyable for the next 2-3 years or so.

Katech_Zach

Check out my article in The Shop magazine. It answers all your questions.

http://read.uberflip.com/i/834132-july-17

Lorenzo Serra

Your best best is to keep your OEM heads and send them to the best reputable shops to get them ported with solid valve guides like the Moldstar90.

You can't go wrong with either AHP or WCCH. Contact bother vendors and see who works better for your needs.

-L

cv67

Youll find lots of options, this is posted almost every day here.

Welcome to the forum

Unreal

3rd option is extended warranty and keep it stock.

Gearpuller

Are you going to leave it stock or put a cam in it and mod it ?

Stock: I would get one of many good machine shops out there and replace the guides and install some better exhaust valves and springs.

Mod: if going with a high lift cam. AHP. Use their Molester 90 guides.

When I first bought my Z06 I just got out of a 07 Z51 (bone stock) and had a big smile. Knew about the valve guide issue and within 500 miles I fixed it, modded to 575 rwhp and that smile turn into a **** eating grin that there every time I fire it up.

avisenna

Thanks guys! Appreciate it

I'm going to look further into these options. Honestly I'll probably just keep it stock for now. The $3500 valve job deal by Katech doesn't sound bad either.

I actually have the aftermarket warranty by Fidelity. It's the platinum coverage plan so theoretically it should cover everything except wear items...but not sure if I want to just blindly count on that (would rather be safe than sorry).

Would love to hear some feedback if anyone has any regarding that

avisenna

Oh and here are some pictures of the car ofcourse

NVA2010

Photobucket recently banned all 3rd party hosting unless you pay for their subscription now. So you'll have to find another photo hosting site to use or just upload them directly from your device, unless you feel like paying something around 400-500 a year for photobucket.

avisenna

Thanks for that! Just updated the links

MTPZ06

Nice! It appears to have some exhaust work...

avisenna

Yup it came with a Borla and K&N intake-sounds freaking bad ***

MTPZ06

Nice! Now you just need some AHP heads.

avisenna

Touché- just a matter of time

American Heritage

Very nice looking Z06 OP. Nice color!

Feel free to give us a call if you ever have any Z06 questions. We are always glad to help out.
310-326-2399

http://www.americanheritageperformance.com/

EricV

Thank you very much for the great article and advice. You guys at Katech know what you're doing and I trust your experience and scientific validation of the issue.

With that being said, can anyone recommend a great shop in or near the Austin, Texas area to get some bronze valve guides installed and have a valve job performed? Also, what should this cost?

Thanks,

Eric

cv67

Better read the fine print with that aftermarket warranty...(just pull them off and get them fixed).

Katech_Zach

LMR, LG, Dallas Performance. We are offering an install special at Katech right now for $3500.

EricV

Awesome - I'll check them all out. I would take it to you guys in a heartbeat if I was closer to Michigan. Might be an excuse for a road trip?

BigVette427

There is of course Texas Speed and Performance right up the road in Georgetown; they can rebuild your heads or sell you their PRC heads. I'm having my heads done at AHP and then shipped to me where I'll then have Aikman Performance in Cedar Park do the install and tune. Just got my custom cam from TSP this afternoon, though.