Ferrea 5000 Series +1mm Oversize Intake & Exhaust Valves Set Honda Acura K20 K20A2 K20A4 K20Z1 K24

1 In Stock

1 of these are currently available in stock at our Sanford, FL location.


Ferrea 5000 Series Valves are the most cost effective valve applications on the market today. They are designed to withstand high rpm and high spring pressure at a budget price. These valves are machined in Ferrea's state of the art CNC centers allowing tight tolerances without breaking the budget.

  • One-Piece Forging Stainless Steel
  • Proprietary Heat Treatment Process
  • Flat Face
  • Hard Chome Stems
  • Fully CNC Machined 

The 5000 Series Hi Performance Valves have become the alternative for performance engine builders that use our competitors “street” or “performance valve”. These valves are machined in our CNC centers allowing tight tolerances and cost effective design.

They feature a one-piece forging made from stainless steel, a special heat treatment process, hard chrome stems, and hard tip. 


More Information
Availability New In Stock / Available
Note 5000 Series Competition
Valve Size 31mm (0.040" Over), 36mm (0.040" Over)
Shipping Weight (Dimensional) 4.000000
Clearance Sale No
Availability In Stock
Part Type Valves
Make Honda / Acura
Model Civic Si 02-05 EP3, Civic Si 06-11 FA5 (Sedan), Civic Si 06-11 FG2 (Coupe), RSX Base 02-06 DC5, RSX Type S 02-06 DC5, TSX 04-08 CL9
Engine K20A2, K20A3, K20Z1, K20Z3, K24A2
Brand Ferrea
Valve Tip Length 2.5mm
Stem Diameter 5.48mm In / 5.45mm Ex
Valve Length 109.3mm In / 109.15mm Ex
Valve Head Size 0.040" / 1mm
Valve Head Diameter 31mm, 36mm
Valve Type Intake & Exhaust
Valve Stem Diameter 5.45mm, 5.48mm
Valve Material Stainless Steel
Valve Face Flat
Carb Legal Unspecified
Shipping Label Free Shipping


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