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Discussion Starter · #1 ·
HeadGames Motorworks teamed up with their partner in horsepower, Ferrea Racing Components to bring you the first commercially available valve and spring kit for the GTR!
As expected from Ferrea, the components are a work of art, and designed to withstand what ever you can throw at them. Same valve material HeadGames has installed in many championship, record holding, sport compact cylinder heads over the years. This super alloy is made to withstand the abuse and heat associated with big boost. Intake valves are made from Super Alloy EV8, while the exhaust valves are made from the latest in inconel technology called Numonic90... and the best part is...the valves are malleable, meaning they will bend and not break if the valves and pistons decide they wanna smooch. Saving you money from having to replace everything when things go catastrophic. It's kind of like insurance!



Ferrea vs Stock




Ferrea Ti retainer vs Stock


Ferrea dual spring vs Stock


The crown jewel of this set up...Ferrea designed valve lock!
The Ferrea designed valve lock you will notice is longer then the factory lock. This aids in taking pressure away from the tip of the valve so you can run more spring pressure without the worry of popping the tip of the valve off the 5.5mm stem that the VR38 comes with. It is also machined, versus the stamped steel stock version, and this aids in less headaches as the valves will never pull through the ti retainer(drop a valve)


price...$1750.00 free shipping!

price includes:valves(available in standard and +1mm) springs, retainers, valve locks and seat locators

We do not have this on our website as of yet, but you can call us 609.882.3211 or email us from our website, or PM

Thanks!

Dave Localio
HeadGames Motorworks
 

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Discussion Starter · #3 ·
we have started on the port, and think there we will never see a need for a 2mm oversized valve. Actually, a stock size valve will suffice for most of what anyone would need at this moment with current power levels. I would say oversize after 1400whp or so with a +1mm valve.
 

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we have started on the port, and think there we will never see a need for a 2mm oversized valve. Actually, a stock size valve will suffice for most of what anyone would need at this moment with current power levels. I would say oversize after 1400whp or so with a +1mm valve.
Thanks! Do you know if the heads are vvt on int and exu?
 
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