Cosworth Mitsubishi EVO 9 MIVEC CNC Ported Big Valve Cylinder Heads

The Cosworth CNC ported cylinder head for the EVO 9 (with Mivec) features 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.
CNC Ported/Machined finish port- New Castings
Hand blended finish work
Intake 20% (max) increased flow
Exhaust 22% (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
Knife edged port divider

Art.Nr.: CO-CS-KK3852

Hersteller: Cosworth

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4'795.00 CHF

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