Exhaust Valves What it is: A replacement exhaust valve designed to seal the combustion chamber and control exhaust gas flow in compatible engines. Why you need it: Worn or damaged valves cause loss of compression, misfires, and reduced power. Replacing them restores engine breathing and reliability. How it improves performance: Better sealing reduces leakage, smoother idle, quicker throttle response, and more consistent power delivery under load. Material and finish: Made from grade alloy steel, heattreated for durability, with a corrosionresistant surface coating for long life. Size and compatibility: Available in multiple standard sizes. Check stem diameter, head diameter, and seat width to match your engine. Most common engines with standard exhaust valves can be serviced with these. Use scenarios: 1) Engine rebuild or restoration on a car, light truck, or motorcycle. 2) Performance tune or after valve wear causing compression loss. 3) Spare parts for batch builds or DIY engine projects. How to choose and install: Measure valve stem and seat dimensions and compare to OEM specs. Professional installation and proper valve lash adjustment recommended.