Ferrea Racing

Ferrea 6000 Series +1mm Competition Valves (Mitsubishi 4G63T)

  • Sale
  • $283.20
  • Regular price $393.28


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.

Intake Valve Specs

  • Head Diameter = 35mm
  • Stem Diameter = 6.57mm
  • Overall Length = 109.7mm
  • Tip Length = 3.8mm

Exhaust Valve Specs

  • Head Diameter = 31.5mm
  • Stem Diameter = 6.55mm
  • Overall Length = 109.7mm
  • Tip Length = 3.8mm

*Includes 8 intake valves (F6052) and 8 exhaust valves (F6054)