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 intake valves.

Features:

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

Valve Specs:

• Head Diameter: 35mm (stock size)
• Stem Diameter: 5.47mm
• Overall Length: 109.3mm
• Tip Length: 2.5mm
• 20" 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