P2R Ferrea J Series 37mm Intake 6000 Series Valves

The Ferrea 6000 Series Competition Valves are designed to provide excellent reliability in an environment of high spring pressures at a budget price. They have higher fatigue resistance and tensile strengths than their competitor’s best offerings. To manufacture the valves they use their 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.37mm Intake Valves Sold as s set of 12 exhaust valves. 37mm is a + size valve.  Custom valve job required, and pistons need to support this size valve.