Precision engineering, selection of superior grade alloy materials and advanced manufacturing processes ensure that Melling exhaust valves meet the exacting specifications required for efficient, durable and powerful performance. Melling exhaust valves feature high fatigue strength materials, excellent heat resistance and years of dependable performance. Melling exhaust valve selections are available in a wide variety of designs and materials for most OEM and performance vehicle applications. Brand:Melling Engine Make:Melling Engine Parts pdm:Grade Type:Regular pdm:Coated Finish:Yes pdm:Oversized:No pdm:Length:4.807 IN pdm:Material:High Alloy Steel pdm:Locks Included:No pdm:Lock Groove Quantity:3 pdm:Stem Diameter:0.274 IN pdm:internal_sku:MELV1744 pdm:Seat Angle:45.0 DD pdm:Title:Engine Exhaust Valve pdm:line_code:MEL pdm:Stem Diameter:7.0 MM pdm:Length:122.0 MM pdm:Valve Head Diameter:38.0 MM pdm:Valve Head Diameter:1.496 IN