High Performance Porting, Valve Guide Upgrades, Spring Upgrades, Valve Jobs & More For Mitsubishi 1st, 2nd, Evo 8-9 4G63, 4B11T, 6G72, 420A Cylinder Heads

Our HeadGames Motorworks 4G Packages are built on experience and unmatched reliability. They are known for being world renowned performers, making for the absolute perfect option when looking for a budget minded head package that will deliver for years.

Our full port is known for its quick spooling capabilities with dyno graphs chock full of area under the curve. We do this by going against the grain. This head is rationally ported, with air speed in mind, and we utilize the factory size valves up to 1000whp! We came to this conclusion not by mere thought, but by careful action. And testing! Don’t be fooled by the oversized valve myth.

We also offer 2 pocket port packages. The Pocket Port and the Pocket Port ‘R” which is coupled with combustion chamber reshaping to aid in getting rid of any ugly detonation. The HeadGames Pocket Port ‘R’ Package is a proven 8 second, 1000whp performer!

4G63 Price Guide
4B11 Price Guide
Contact Us Today

Some Of Our Mitsubishi Cylinder Head Work On Instagram:

Cylinder Heads 101

A Beginner’s Guide To Cylinder Heads, With Headgames Owner David Localio

We’re a Top Rated Machine Shop! Read Our Reviews:

“These guys are the best. Super easy to work with and are there for you. Works to meet deadlines while perfecting the job. Would not go anywhere else for headwork.”
“Dave and Tiffani are professional, knowledgeable, and very kind. I had a 1JZ cylinder head worked on, and they did a great job. Only the best in parts for this build.”
“By far the best in the business Highly recommended for Cylinder Head upgrades/machine work. Thank you for everything”

Trusted Partners

Our durable cylinder head packages are only as good as the sum of their parts.  We partner with these great brands to build you the best cylinder heads you can buy:

Building Powerful Cylinder Heads

We’re ready to take your cylinder head game to the next level!


Only takes a few seconds!