Audi S2 2.2 20V exhaust valve +0.5mm F6028 Ferrea F6028 (Supertech - сервиз

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F6028 (Supertech

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Part number F6028 (Supertech VWEVN-1035)Ferrea 6000 series exhaust valve +0.5mmAudi / VW 4-5 cylinder engines - 1.8-2.0 16V, 2.2T-2.3 20V (KR, PL, 6A, 9A, ABF, 3B, AAN, ABY, ADU, 7A)Head Diameter: 28.6 mmStem Diameter: 6.93 mmOverall Length: 98.3 mmTip Length: 2.8 mmReference: 22 Degree Flo Radius Groove. + 0.5 mm over size. Special Alloy The 6000 Series Competition Valves are designed to provide excellent reliability in an environment of high spring pressures and roller cams, at a budget price. They have higher fatigue resistance and tensile strengths than our competitor’s best offerings. To manufacture the valves we use our exclusive two-step slow forging process using EV8 stainless steel on both intake and exhaust valves.We provide a special heat-treatment and stress relieving process, along with hard chrome stems and friction-welded hard tips. We finish with a swirl polished head. The valves feature flow improvements to deliver the power needed for today’s sophisticated racing engines.