Head Porting – Kia Stinger 3.3L


Please note these are scheduled and are not shipped immediately.

How do you want to purchase these heads?

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We fix all of the casting issues with an extensive port & polish job. This is done to improve the airflow within the head both on the intake ports as well as the exhaust ports, allowing more air in and more exhaust out per revolution which results in more power.


After a port & polish, you need to replace the valve guides, valve seals and get a valve job at a minimum. We will port and polish the head(s)and then send them to MT Motorsports for the rebuild process. It’s recommended that you get the head(s) decked to ensure flatness.

You can choose from a rebuild with stock components or a full build with lightweight components and/or over-sized valves.