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GSC P-D Extreme Pressure Single Conical Valve Spring & Titanium Retainer Kit Mitsubishi 4G63T - 5078
GSC P-D Extreme Pressure Single Conical Valve Spring & Titanium Retainer Kit Mitsubishi 4G63T - 5078 - Image 2 GSC P-D Extreme Pressure Single Conical Valve Spring & Titanium Retainer Kit Mitsubishi 4G63T - 5078 - Image 2
GSC P-D Extreme Pressure Single Conical Valve Spring & Titanium Retainer Kit *Includes Seat* Mitsubishi 4G63T

Trying to break records? Trying to win races? This is the valve spring kit for the 4G63T that will allow you to take your engine package to the next level. Not for street cars or sub 1,000 HP builds, in that case please see our GSC5040 or GSC5041 beehive spring kits. Capable of controlling the valves with 60+ psi of boost at 11,000 RPM with 12.1mm lift cams. In racing, every tenth of a gram matters, so our redesigned Ti Retainer is 10% lighter and smaller, while still adding the strength needed to keep the valvetrain in one piece at 11,000 RPM.

The GSC5078 kit also includes our GSC4041 chromoly CNC replacement valve spring seats that are 0.035" thicker than the OEM part. Able to use NEW OEM valve spring keepers or our GSC1003 keeper kit. No need for special aftermarket locks that have the potential of being the wrong angle. Sold as a set: 16 conical valve springs, 16 Lightweight Ti Retainers, 16 thick CNC chromoly spring seats.

Features:
  • Max RPM: 11,000 RPM
  • Max boost: 60+ psi
Specifications:
  • Setup: HP Conical
  • Coil Bind (in): 0.952
  • Install Height (in): 1.504 / 1.484
  • Seat Pressure (lbs): 134 /140
  • Open Pressure, 11.50mm lift: 275 lbs @ 12.1mm lift / 280 lbs @ 12.0mm lift
  • Maximum Valve Lift (in): 0.476
Note:
  • Includes Seat
Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

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Who is GSC?

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.

Using Technology to their Advantage

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.

Parts Built for Serious Power

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.

Purchase GSC Products at Vivid Racing

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.




GSC Power-Division LLC warranties all of our camshafts, valve train, and internal engine parts will be free from any and all manufacturing defects. Our warranty is only valid as long as our products are installed correctly by a certified SAE technician or certified engine builder to either GSC Power-Division LLC's provided specifications or to the original manufacturer's specifications (if no specs are given). GSC Power-Division LLC will not warranty any second hand or transferred products. GSC Power-Division LLC's warranty is with the original purchaser of the product(s) and is valid for one (1) year from the initial date of shipment. Warranty will be void on all products that show evidence of improper application or installation, abuse, lack of proper maintenance, alteration from the original configuration of the product, or not used in conjunction with matching components. GSC Power-Division LLC does not warranty any of its products when used for race-only applications as well as non-automotive use of our line of automotive products. GSC Power-Division LLC tries to ensure that every item supplied is suitable for its specific, outlined application. Due to the possibility of variation of modifications made on performance engines that affect performance, economy, reliability, and engine life; the final responsibility of our product rests with the person performing the installation. GSC Power-Division LLC's Technical Department is available and should be contacted if any issues, questions, or concerns are discovered with our products. GSC Power-Division LLC's obligation under this warranty is limited to the repair or replacement solely of GSC Power-Division LLC products. On occurrence of a problem, please contact GSC Power-Division LLC's Technical Department to arrange for an inspection of the item. No claim will be accepted without the prior approval of GSC Power-Division LLC. All camshafts manufactured by GSC Power-Division LLC are intended for off-road use only and should never be used on public roads.

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