What they have done is actually quite simple, they made valve guides that fit properly, are easier to install, and shaped to help air flow instead of just copying the OEM design. The GSC Power Division valve guides are made from true C67410 Manganese Bronze and turned on a dedicated precision CNC turning center. What this means for you and your installer is less time fitting guides to the head due to holding the tightest tolerances in the industry with the best quality control possible.
The stopper style is simply what it says. It has a stop integrated into it so that it wont get pushed in to far. Most machine shops have to drive and check multiple times to get the proper protrusion, these have it built in.
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WARNING: Cancer and Reproductive Harm
GSC Power Division started its business back in 2004. The company is known for manufacturing high-performance engine internals for various automotive vehicles. Known for creating camshafts for Japanese turbo cars, they have since expanded their offering, catering to other vehicle brands such as BMW, Porsche, Toyota, Mitsubishi, Subaru, Nissan, Honda, Ford, Mazda, Dodge, and Lamborghini.
The company is able to produce top quality products by using the most advanced manufacturing technology such as a CNC machine and the latest design software. This allows them to create precise and accurate parts that would directly fit in the vehicle.
The company offers a wide range of products, ranging from camshafts, valves, valve seals, lifters, valve guides, and more. Depending on your required specification, their parts are designed for high-performance application and can withstand more than 1000 plus horsepower. This is why they have become the brand of choice by many top teams and racers in various racing disciplines.
If you are in search of a product that would help you achieve that horsepower gain you are aiming for, then GSC is the brand for you. Tested by racers all around, they have provided track-proven products that are professionally done by people with decades of experience in making cars go fast. They have parts upgrade for most high-performance vehicles in the market. Visit Vivid Racing and check out their product offering that would fit your specific needs and vehicles.