NHTSA Complaint #11318640 — 2009 CHEVROLET CORVETTE

I EXPERIENCED AN ENGINE FAILURE. THIS RESULTED IN A SUDDEN AND COMPLETE LOSS OF POWER AT AN UNEXPECTED TIME. THIS OCCURRED DURING A HIGH PERFORMANCE DRIVER EDUCATION EVENT AT AUTO CLUB SPEEDWAY IN FONTANA, CA. THERE WAS NO WARNING BEFORE THE MOMENT THE ENGINE FAILED. THE CAUSE OF THE FAILURE WAS THE HEAD OF ONE OF THE EXHAUST VALVES SEPARATED FROM THE VALVE STEM AND FELL INTO THE CYLINDER, DESTROYING THE CYLINDER HEAD, PISTON AND CYLINDER WALL. THE ENGINE MODEL IN MY 2009 CORVETTE IS THE LS7. A GOOGLE SEARCH ON 'LS7 DROPPED VALVES' WILL FILL MANY PAGES.