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:Length:128.0 MM pdm:Coated Finish:Yes pdm:Material:High Alloy Steel pdm:Locks Included:No pdm:Lock Groove Quantity:1 pdm:Stem Diameter:0.298 IN pdm:Grade Type:Regular pdm:line_code:MEL pdm:Valve Head Diameter:1.655 IN pdm:Title:Engine Exhaust Valve pdm:Stem Diameter:8.0 MM pdm:Oversized:No pdm:Valve Head Diameter:42.0 MM pdm:internal_sku:MELV1367 pdm:Length:5.053 IN pdm:Seat Angle:46.0 DD