This is a replacement set of Ecotec Nitrided cylinder head valves. These valves are stock in size and share all dimensions with a stock valve, meaning if your head needs excess machine work you may be better off with our oversized valves found here. The nitrite coating provides a smoother surface on the valve resulting in less friction between the valve and the guide and promoting valvetrain stability. 

Fits: LSJ, LNF, LDK, LHU, and LE5 engines. 

The next upgrade above these are our Inconel valves.

Sold per side each kit includes 8 valves. If you are rebuilding an entire cylinder head you will need to purchase both exhaust and intake sets.