2006 Chevrolet Corvette Z06 Engine Problems

“I was interning the interstate 15 in california and was picking up speed to inter the hwy and my CORVETTE Z06 starting making a knocking sound and lost power and I turned it off and had it looked at my a very well know automotive shop who specializes in GM vehicles. They told me it drop an exhaust valve.”

“I recently had my valves tested by a local shop since ive heard from other owners that the ls7 valves drop at any given time. I had two valves out of specs and have to get it fixed in order to save engine from future damage. My car currently has 52,241 miles.”

“My son was driving and just completed a turn when he applied the accelerator and the engine stopped abruptly. There was a cloud of smoke and then a small fire underneath the car from the oil that came out from a baseball size hole in the side of the block below the number 8 cylinder. Upon further investigation, a valve in the number 8 cylinder snapped below the valve guide dropping the head of the valve onto the piston which caused the failure. I have the engine available for inspection.”

“Manufacturing defected in the ls7 motor. Upon further investigation I had my 2006 CORVETTE Z06 inspected for a loud audible tick in the motor. The source of this noise was from the in-balance from the #3 and #4 intake valves on the engines heads. There is premature wear on both valve guides causing internal failure to the motor. Under power demand the in-balance will cause the titanium rod to strike the sides of the valve seat causing the head of the valve to crack and fall into the cylinder. …”

“I was concerned about a noise that I was hearing in my 2006 z06 that is unlike any other noise I have heard while currently owning my three other GM vehicles. I decided to bring it to a well know corvette speciality shop near me. The told me about the valve guide issue that has been linked to the ls7 heads. I immediately told him to take the heads off the car and check them. I had 4 exhaust valves that were way out of GM specs. I had the heads re-machined properly and installed new intake and exhaust valve guides, valve springs and seals.”