Ferrea 6000 Series Competition Exhaust Dished Valves - K-series

Ferrea 6000 Series Competition Exhaust Dished Valves - K-series

The Ferrea 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 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.

Sold as s set of 8 exhaust valves.


  • One-Piece Forging Stainless Steel
  • Proprietary Heat Tratment Process
  • Hard Chrome Stems
  • Fully CNC Machined

Valve Specs:

  • Head Diameter: 30mm (stock size)
  • Stem Diameter: 5.45mm
  • Overall Length: 109.15mm
  • Tip Length: 2.5mm
  • 22" Flo. Stock size
  • Radius Groove

K-series engine applications

  • K20A - JDM DC5/EP3 Type-R
  • K20A2 - 02-04 RSX Type-S
  • K20A3 - 02-06 RSX Base / 02-05 Civic Si
  • K20Z1 - 05-06 RSX Type-S
  • K20Z3 - 06-11 Civic Si
  • K24A2 - 04-05 TSX

Ferrea 6000 Series Competition Exhaust Dished Valves - K-series

Regular price $181.76
Ships: 1-5 business days
This is an estimated ship date once your order is placed from JHPUSA. Ship dates do not include weekends and holidays.
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