HeadGames Motorworks

Mitsubishi Cylinder Heads - 4G63 Performance Upgrades, Valve Jobs, Porting, Rebuilds & More

HeadGames Motorworks offers high performance cylinder head upgrades, repair and rebuild services for Mitsubishi engines like the 4G63 including porting, polishing, valve jobs, valve guide upgrades and more.

Mitsubishi Cylinder Head Upgrades

High Performance Porting, Valve Guide Upgrades, Spring Upgrades, Valvejobs & More For Mitsubishi Cylinder Heads


Evo Packages:

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

This HeadGames head is known for it's 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 1500whp!  We came to this conclusion not by mere thought, but by careful action.  We build heads that are 2000+whp capable with a 1mm oversized valve.  Do you really need it for half of that?  This package can be coupled with combustion chamber reshaping to aid in getting rid of any ugly detonation which makes the “HeadGames Pocket Port 'R' Package” a proven 8 second, 1000whp performer!

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