Cosworth KK3670 CNC Ported Big Valve Cylinder Head 04-06 Subaru WRX STI EJ25 2.5L

Cosworth KK3670 CNC Ported Big Valve Cylinder Head 04-06 Subaru WRX STI EJ25 2.5L
Item# KK3670
Regular price: $4,463.00
Your price: $4,239.85

Product Description

Cosworth KK3670 CNC Ported Big Valve Cylinder Head 04-06 Subaru WRX STI EJ25 2.5L

Cosworth CNC ported cylinder heads feature dyno tested and flow bench proven ports, engineered for maximum usable power. Each new cylinder head is ported on a 5 axis machine to ensure consistency and perfect port shape every time. Additionally, larger intake (+1mm) and exhaust valves (+1mm) are utilized to help increase flow. Cosworth CNC ported Big Valve cylinder heads come complete with a performance valve job, hi rev (max 10,500rpm) valve springs with titanium retainers and are ready to install. Perfect for high performance applications.


Specifications:


  • CNC Ported/Machined finish port
  • New Castings
  • Hand blended finish work
  • Intake 13.02% (average) 20.26% (max) increased flow over stock 05 casting
  • Exhaust 36.62%(average) 48.98% (max) increased flow over stock 05 casting
  • 4-angle Inlet Valve job
  • 3-angle & radius Exhaust Valve job
  • Valves are lapped
  • Back-Cut Inlet Valves
  • Heads are Ultra Sonic cleaned prior to assembly
  • Heads are Serialized and sport a machined Cosworth logo
  • +1mm Stainless Steel Intake Valves (1800 degrees max.)
  • +1mm Inconel Exhaust Valves (2400 degrees max.)
  • Performance Valve Springs
  • Titanium Retainers
  • Hardened Steel Spring Platforms
  • Knife edged ports

Import Parts Pro, LLC
19505 Wied Rd
Suite E
Spring, Texas 77388
Tel: 281-288-0700
Fax: 281-288-0836
Email: kyle@importpartspro.com
AIM: KyleatIPP
Yahoo: KyleatIPP