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Cosworth Big Valve Cylinder Head with Camshafts Subaru WRX STI EJ25 2.5L 07

  • Cosworth Big Valve Cylinder Head with Camshafts Subaru WRX STI EJ25 2.5L 07
  Product Information
 $6,258.00  Sale:$6,101.55 
  Model: 20002026
  Reviews:   
  
1.480.966.3040    Click for Live Support
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Cosworth Big Valve Cylinder Head with Camshafts Subaru WRX STI EJ25 2.5L 07

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. These heads include Cosworth;s S2 version camshafts (KK3920- Japan/European) with the correct cam followers included. This is the perfect head/camshaft combination for serious performance and track day use.

- CNC Ported/Machined finish port
- New Castings
- Hand blended finish work
- Intake 14.63% (average) 22% (max) increased flow
- Exhaust 30.56%(average) 41% (max) increased flow
- 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
- In stock- ready to ship
- Knife edged ports
- Includes S2 Camshafts and cam followers installed
Select Available Options Then Click
Vivid Racing Reviews:
TEXT_OF_5_STARS by Byo
"John from vivid racing was a very helpful and polite. He made me feel like a friend and always kept in contact with me. John always answered my texts right away. Because of him, I will definitely buy from vivid racing again."
TEXT_OF_5_STARS by Lyndsey
"Ahmed is hands down the best consultant at Vivid. Makes the purchasing experience pleasant and easy as possible. Thanks for the continued great service."
TEXT_OF_5_STARS by Mark
"For all Audi A5 and others with dreaded brake squeal!!!! If you check a lot of Audi forums you will find that tons of people have major brake squeal, this leads people to take it to the dealer many times and problem still persists. I remedied the problem with a quick front brake pad change out using Hawk low dust pads. It always happens more in the cold. It is the cold time of year here in Vegas and not even a hint of a squeal, did this change on my girlfriends car, it took 30 minutes and I look like a hero. I highly recommend the Hawk low dust pads, and on top of it there was no loss in stopping power!!!!! Actually stops great, so no squeal, that is a win win."
TEXT_OF_5_STARS by Chad Hall
"Leo took great care of all my needs. I would recommend him to my friends."
TEXT_OF_5_STARS by Jason
"Best price I could find online for the diablosport intune that I bought. Highly recommend company!! Will be sure to buy again"
   


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About Manufacturer: Cosworth
Over the last 50 years Cosworth have developed an in-depth knowledge of engines, electronics and a range of high performance technologies. This has been used to supply some of the most successful motor sport teams and vehicle manufacturers in history.

Our unprecedented success has fueled customer demand globally from diverse market sectors designing and developing technologies and components for aerospace, automotive, defense and sport applications.


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