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Exhaust valve Volvo B20/B30 Diameter=38mm High Performance.
Art.nr: 552824
Race Valves Equals to Volvo competition stage III valve Made from 1 piece 21 4N, non-magnetic stainless steel Equals extreme high heat tolerance and strength Hardened, 50RC, wafer tip prevents wear in high spring pressure, high RPM applications, and when used with aggressive cam profiles Undercut swirl polished design improves flow and fuel atomization
