SKU: 84972624208

GSC POWER-DIVISION +1mm INTAKE VALVE SET 4B11T

Sale price$157.50 Regular price$175.00
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Description

GSC POWER-DIVISION +1mm INTAKE VALVE SET 4B11TMitsubishi Evo X +1mm Intake Valves by GSC Power Division When creating our new valve line we set out to create the best performance, longest lasting valves available to the aftermarket. Using advanced 3D design and simulation software, we have created a stronger and higher flowing valve head design. We flow test prototype valve heads in the specific applications to make sure we have the highest flowing valve head available on the market today. With

Mitsubishi Evo X +1mm Intake Valves by GSC Power-Division

When creating our new valve line we set out to create the best performance, longest lasting valves available to the aftermarket. Using advanced 3D design and simulation software, we have created a stronger and higher flowing valve head design.

We flow test prototype valve heads in the specific applications to make sure we have the highest flowing valve head available on the market today. With the materials used, we have less valve distortion at the face than any of the tested designs. Less distortion allows for better sealing under extreme conditions and more consistent performance throughout the life of the valve.

GSC Power-Division's new valves are sure to become the industry standard for sport compact performance valves.

Features

  • Swirl polished heads for smoother air flow over the valve
  • Back cut to reduce valve weight for higher RPM, higher boost pressure, and allow for more aggressive cam profiles without increasing valve spring seat pressures
  • Valve stems are micro polished to allow for less oil retention on the stem, which creates less drag on the stem to guide for a smoother motion
  • Intake valves are a modified 21-4n stainless and exhausts are a modified 23-8n stainless material for high heat capacity while maintaining longevity
  • Valve tips are either hardened or have a stelite wafer tip fused so that the tip is within 5 Rockwell C of the rocker or valve tappet for extended life and less wear
  • Valve tip lengths - we have taken extra time to adjust tip heights on the applications to require less tipping of the valve, to maintain proper tip height for proper valve train geometry, and to cut down on install times when setting valve lash
  • We have also adjusted the keeper groove to properly balance intake and exhaust spring pressures to reduce the use of valve spring shims and maximize performance from our spring and retainer kits
  • Valves will work with an OEM keeper/lock or, when available, our upgraded keeper/lock. It is not mandatory, but it is suggested, that any valve lock not be reused on performance applications due to material grooving

Applications

4B11T

What's In The Box?

  • 8 - Intake Valves (+1mm)

Warranty

  • Manufacturer Standard Warranty
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 84972624208

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Rk
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Bill Bryant
Dallas, US
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fit the 2023 Jeep Grand Cherokee, always a relief. Works well too, inside air is cleaner. Happy with it and will purchase again when it is time
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Frank J
Carnegie, US
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Perfect fit.
The cabin filter is easy to install and fits perfect, but just so you know it is not OME.
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Carnegie, US
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Item is sturdy
Great item. The quality is amazing too
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Birmingham, US
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Good quality
Appeared to be better quality than the origional.
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Reviewed in the United States on January 16, 2026

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