I have 4 in stock and they are going fast. PM for pricing.
Cosworth Big Valve Cylinder Head Mitsubishi EVO 2.0L 4G63

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

Includes


CNC Ported - New Castings

Hand blended finish work

Intake ?26% (max) increased flow

Exhaust ? 18% (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

Thanks
Evan

 

how much and is it really needed on a lightly moded car. what kind of power gain would we expect?

 

^^ same question pm with info.

 

I would say this would be utilized more if you where doing a big turbo and motor build, but you will see about 25 horsepower from these heads. Thanks

Evan

 

well my plan by next year is to be 2.3l and atleast 30r so maybe then i will pick one of these bad *** heads up

 

price?

 

^^Ditto....

 

PM me for pricing please.Thanks

Evan M Smith

 

Pm me price of head please

 

I really want one.

 

shipped 33908

 

Very interested considering im in the middle of building my motor and i need a head that can handle the applications that im going to be putting into the motor can i get a pm on the price. Thanks.

 

The cost of the head alone will be $3875 but heres a link of a recent post....
https://www.evolutionm.net/forums/sh...d.php?t=231246
If you need anything else from cosworth I can get you a package deal shipped! So please let me know!!!