Ground Exhaust Valve, Flathead Item Number: 211119SGR Price: $20.83 Add to Cart Description This product is an OEM Briggs and Stratton exhaust valve for the flathead 5HP engine. We true the seating surface to ensure a proper seal. This valve is WKA legal. Accessories Ground Intake Valve, Flathead 1.600" Billet Lifters, Flathead 1.700" Billet Lifter Set, Flathead Valve Cover Gasket, Flathead