SKU: 33737253693

GSC 4B11 Conical Valve Spring Kit for Evo X

Sale price$222.44 Regular price$247.16
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Description

GSC 4B11 Conical Valve Spring Kit for Evo XThe GSC Power Division high pressure conical valve spring with titanium retainers for the Evo X includes a full set of 16 titanium retainers, 16 conical valve springs and 16 valve spring seats. Vehicle Fitment: Mitsubishi 4B11T2008 2015 Evolution X IN: 112 lbs @ 1. 294" EX: 110 lbs @ 1. 300" install height IN: 259 lbs @ 0. 849" EX: 257 lbs @ 0. 855" Up to 11. 30mm lift camsIncludes:(16) Beehive Valve Springs(16) Titanium Retainers(16) Valve Spring

The GSC Power-Division high pressure conical valve spring with titanium retainers for the Evo X includes a full set of 16 titanium retainers, 16 conical valve springs and 16 valve spring seats.

Vehicle Fitment:
Mitsubishi 4B11T
2008-2015 Evolution X

• IN: 112 lbs @ 1.294" / EX: 110 lbs @ 1.300" install height
• IN: 259 lbs @ 0.849" / EX: 257 lbs @ 0.855"
• Up to 11.30mm lift cams

Includes:
(16) Beehive Valve Springs
(16) Titanium Retainers
(16) Valve Spring Seats

More Info:
True conical valve springs are not a new concept and are industry proven to provide several key advantages over traditional spring designs. A major advantage of conical springs vs. traditional cylindrical or beehive springs is the damping and removal of valvetrain harmonics.

Of the three designs, conical springs are the front runners in valvetrain harmonic stability. Utilizing a varying coil diameter as well as coil spacing, a conical spring acts as a natural harmonic damper in the transfer of valvetrain shock. This translates to less stress, less wear, and a longer life of the included components.

This level of protection is needed in today’s engines being pushed to their physical and mechanical limits by aftermarket modifications. Every GSC conical spring offers a super finished surface treatment to go along with the patented, multi-step heat treatment process. The finished product is an extremely reliable, high-performance spring allowing the users to push higher RPMs, use more aggressive cam profiles, and turn up higher boost pressures.

Part Number: GSC5062
Springs: Conical
Retainers: Titanium
Coil Bind: 0.818"
Install Height: 1.294 / 1.300"
Seat Pressure: 112 / 110 lbs
Open Pressure, 11.30mm Lift: 259lbs @ 0.849"
257lbs @ 0.855"
Maximum Valve Lift: 0.437"
Max RPM: 11,000
Max Boost: 55 psi
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: 33737253693

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Kelly
Grantham, US
★★★★★ 5
Perfect
Size: 2 Tier,5.5''Wx10.5''Dx9.5''H
Absolutely perfect not to big fit perfectly where my daughter wanted it.
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Reviewed in the United States on May 31, 2026
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Alessandra Acosta
Fort Morgan, US
★★★★★ 5
Delicate look
Holds a lot of my bathroom accessories, sturdy and easy to install. Blends well with all my bathroom decor. Perfect price
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Reviewed in the United States on April 17, 2025
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Deyanira DeJesus
Louisville, US
★★★★★ 5
Built really good
I was quite surprised on the craftsmanship. Everything turned out great when mounting my wife and I love the way it looks in the bathroom.
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Reviewed in the United States on January 30, 2024
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Tom Vice
Charlottesville, US
★★★★★ 4
Small but very nice
The shelves are sturdy and very nice. Make sure you look at the measurements before you order.
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Reviewed in the United States on February 5, 2024
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Isabel
Belleville, US
★★★★★ 5
Great
Loved it. Looks super neat, had not oxidized whatsoever. Great size for an over the toilet shelf.
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Reviewed in the United States on July 1, 2025

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