The 6000 Series Competition Valves are designed to provide excellent reliability in an environment of high spring pressures and roller cams, at a realistic price. They have higher fatigue resistance and tensile strengths than competitor products.
To manufacture the valves, Ferrea uses an exclusive two-step slow forging process using EV8 stainless steel on both intake and exhaust valves. Ferrea provides a special heat-treatment and stress relieving process, along with hard chrome stems and friction-welded hard tips. Ferrea finishes with a swirl polished head. The valves feature flow improvements to deliver the power needed for today's sophisticated racing engines.
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All fitment information is only a guide, exact fitment may differ. If in doubt please email us.