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*DISCONTINUED* Cosworth CNC Ported Big Valve Cylinder Heads 2003-2007 Nissan 350Z, G35 VQ35DE (3.5L) - Pair

Cosworth CNC Ported Big Valve Cylinder Heads 2003-2007 Nissan 350Z, G35 VQ35DE (3.5L) - Pair
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Cosworth CNC Ported Big Valve Cylinder Heads 2003-2007 Nissan 350Z, G35 VQ35DE (3.5L) - Pair
List Price: $99,999.99
Our Price: $99,999.99
Sale Price: $99,999.99


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Availability:: Usually Ships in 1-2 Business Days
Product Code: KK3918

Description
 
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Cosworth CNC Ported Big Valve Cylinder Heads 2003-2007 Nissan 350Z, G35 VQ35DE (3.5L) - Pair
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 and designed for excellent torque and turbo response. These heads are compatible for both versions of the VQ35DE including the "Rev up" version.
Features
  • CNC Ported/Machine finished port
  • Intake 19% (max) increased flow
  • Exhaust 22% (max) increased flow
  • 4-angle Inlet Valve job
  • 3-angle & radius Exhaust Valve job
  • 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 port divider
  • Combustion chamber volume 58.5cc (OE approx 56 cc)

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