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Cosworth CNC Ported Cylinder Bare Head Set

Part #: COS1 20030323



SPECIFICATIONS

Valves Included: No
Includes Camshafts: No
Material: Aluminum
Percent Flow Increase Exhaust: 15.70
Percent Flow Increase Intake: 13.40
QTY: 2
Springs Included: No
Mfgr. Warranty: No Warranty

Getting a set of our premium ported cylinder heads eliminates the need of waiting for a machine shop to inspect your heads of any damage or cracking before the actual porting begins. These heads have been precision ported to provide an abundance of flow for those looking to make more horsepower in the EJ25.

These heads start out as brand new Subaru cylinder heads and our given to our expert team to create a head intended to push the limits on cylinder head flow. With that said these heads will come bare to allow the user to choose what valve train they’d like to employ to finish the job.

These are perfect for those of you who have a serious blue print that involves a larger turbocharger and more boost, and need the heads to flow the numbers needed to reach your goals.

Replacement Components

COS1 SB0034, Intake Valves

COS1 SB0033, Exhaust Valves

COS1 KK3766, Cams

COS1 KK3839, Valve Springs

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