magnoman

So I Purchased a 08 C6Z with 34k miles on it . I did AHP heads , trunion upgrade , 11Qt dry sump tank and Dewitts radiator . Motor is super quite oil Pressure very good @ idle and hi rpm . Did three track days car was stunning except for TT failure that brought me to dealer .
Dealer pulled up warranty records come to find car had quit a bit of work done in 2010 @ 2300 miles . Oil pump Oil pan gasket rear diff .
Just wondering why oil pump would be replaced @ 2300 miles ? only god thing it was in 2010 and believe the pumps for Zr1 and Z06 where the same hoping I did get the Zr1 pump .
That brings me to all the posts about Ls7s are crap Rod and Main bearing going bad ? my car has 37k miles know no issues going to have oil test done @ next oil change .
There is thousands of C6zs out there thinking always here about the bad and not the good . I have friend out in LA has tracked his 06Z since day he bought it not a issue ever .
Just wondering should I have bought a Grand Sport and bullet proof Ls3 ?
Want to ease my mind just a little .

rjacobs

The bearing issues didnt crop up until 2012 or so when they switched to the lead free bearings.

You have the heads fixed so no issues there anymore.

What is TT failure? Torque tube? What failed? The giubo's? Replace with ZR1 or DSS has some urethane or there is a BMW giubo that supposedly works as well.

NemeZ

RedZ4me

………...and here we go again, another 'LS7 crap' post

magnoman

I was just quoting what I have heard and read . Believe me love LS motors think lot of the BS that gets spread around is people that abuse the engine and do mods that it was not designed for # 1 high lift cams and dual valve springs that the "OE Ls7 lifters are NOT designed for " words from the mouth of Tony Mamo ..

03Zcrit

no0one718

These cars are starting to get old, a lot of them are driven hard and put away wet. Many have been passed around the used car market quite a bit. I am not surprised at that some are showing signs of abuse/neglect.

Hirohawa

Show me twenty 500HP Ferraris with 30,000+ miles on their motors. I'll wait...

jayyyw

You're always going to see more failures on a specific forum than you will out in the real world. That will make it seem like it's a super common occurrence.

FNBADAZ06

You have to take away the hyperbola and sensational threads and use some commons sense.
If the thread starts with "Crap, ****, Garbage, etc. , most of the time you're already dealing with a biased opinion. Sometimes cooler heads and rational conversation will come of it, but they generally degenerate into nonsense and arguing.

There's a ton of good data out there and a lot of us are long term owners who've put many miles on these engines.
Take care of it, but monitor the vitals...even more so if you mod and race it.

drewz06

63k miles on a stock engine so far and the last 13k have been by me, needless to say I don't ***** foot the accelerator

the heads may go and takes the motor with it but I had planned on new heads and the possibility the engine may fail, which is why I got an after market warranty..... I've got about 10k more miles before that's up, then heads cam intake exhaust time!

the main shaft bearings in the t56 actually went out and they replaced the trans, wasn't expecting that to happen...

it's a race motor, if you want reliable, buy a civic that's detuned at 100hp and you'd probably get three hundred thousand miles out of it.

I expect a failure on a razors edge

Michael_D

I build engines. The ls7 isn't crap. The problem is the dumbasses with idiotic expectations who by the car. They are the reason I have no interest in participating at this forum anymore.

jimbob8915

Hmm. Don't stop participating MD. Just pick your conversations better. I have read many of your posts and replies and it would be a shame to loose your thoughts. I think most of the cars we are reading about are bought used, driven hard, and put away wet. Stuff happens.

phxcobra

please keep posting Michael, we need more knowledgeable people like you keeping it real and honest here.

big_mike_eu

No no, don't stop participating Michael. I've found your posts and PMs super helpful.

What do you mean by "...put away wet"? LOL

Gunrunner72

All you gotta do is pull up a couple of YouTube vids of guys doing cold starts, revving the engine to the moon all for the sake of "got my new BB Fusions on and wanted to do a short exhaust vid" to cringe at what is out there for sale on the used market.

Undy

As the price of the vehicle drops with age and becomes cheaper the demographics of the people buying it also changes too, IMO for the worse. When these vehicles was first offered in 2006 you 'only' had people that could afford a $80K car purchasing the Z06. I tend to agree with Michael.

slammin86

FPFQ corvette!

99Hawk262

My car is an '07, and it was showing 5 previous owners when I bought it. Not sure if that included dealers, but it was so much cleaner than the previous 1-owner '09 I had that I took the plunge. The motor looked untouched and that was confirmed when I replaced the heads. I was a little worried about how it was driven for the first 37K miles, but so far it's been rock solid and I do what I believe are all the right things for it such as proper warm up, monitoring the vitals regularly, oil samples, etc. I regret not checking and replacing the lifters when I had the heads off, but too late for that now. Regardless, I think if you educate yourself on the quirks with this car, and acknowledge that maintaining it might be a little more expensive and time-consuming than your normal run-of-the-mill car, you'll be just fine. I love wrenching on my own stuff, so this was a perfect match for me. And as already mentioned, driving this beast makes it all worth it. It really is something special.

Hirohawa

Yes please don't stop posting.