Cosworth KK3852 CNC Ported Big Valve Heads Reviews
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Cosworth KK3852 CNC Ported Big Valve Heads Feature
- 4G63 - MIVEC
- Heads come without camshafts unless otherwise noted.
- Mitsubishi EVO (06)
(4G63 - MIVEC) Built for the (06) Mitsubishi EVO... For over 40 years, Cosworth has been the leader in innovative multi valve cylinder head design. Their latest advancement is the Cosworth CNC Ported Big Valve Cylinder head range. Modified from OE cylinder head castings, substantial gas flow improvements and upgraded valve train components offer superior performance for your high performance engine.Each original cylinder head design is carefully evaluated and tested to establish the improvements required to meet the target performance level. Hours of testing and flow bench validation are used to determine the best advanced port design yielding maximum usable power and response. However, there is more to cylinder design than just maximum flow. It is critical that port velocity is maintained to ensure drivability and valve train components are matched to guarantee reliable performance. Once all of these factors have been tested and validated, the final port contour is digitized. Using the digitized program, we then reshape both intake and exhaust ports using a 5 axis CNC mill producing and accurate and consistent port shape every time. In addition to re-shaping and enlarging the intake and exhaust ports, most Big Valve Cylinder heads feature a re-shaped combustion chamber to un-shroud the valves increasing air flow and performance. After machining, each cylinder head is ultrasonically cleaned, serialized and then hand assembled with select high performance valve train components, ready to install on you engine. Features include:Enlarged Intake and Exhaust portsLarge diameter stainless steel intake valvesLarge diameter Inconel exhaust valvesHi Rev valve springsTitanium RetainersHardened Steel spring platformsReshaped combustion chamber on most applicationsFlow bench proven designDyno testedMachined Cosworth LogoMulti angle valve jobPre-assembled, ready to install
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Jun 27, 2011 10:44:04
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