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Cosworth Big Valve Race Cylinder Head - EVO X
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On sale for the next 15 minutes
SKU: 20005685
Price: $4259.95

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Product Overview
Cosworth Big Valve Cylinder Heads are manufactured from new OEM castings and feature the latest in port shape and design 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 Race Cylinder Head Features:
    - CNC Ported/Machined finish port- New Castings
    - Hand blended finish work
    - 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.)
    - High Performance Dual Valve Springs
    - Titanium Retainers
    - Hardened Steel Spring Platforms
    - Knife edged port divider

Fits: Mitsubishi Lancer Evolution X
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