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Description
GSC 4B11 Evo X Conical Valve Spring KitThe 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 |
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Good textbook
Format: Hardcover
Nice new book
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Reviewed in the United States on September 16, 2025
★★★★★ 3
Like you have a choice
Format: Hardcover
If you’re buying this, there’s a good choice it’s an assigned text and you have zero choice in the matter. I can say, this one is nowhere near as well written as the Aspen Torts and Civ Pro books. I often read passages in this book and shake my head because it’s so confusing. Property is tough, this book makes it worse.
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Reviewed in the United States on September 5, 2022
★★★★★ 5
Would recommend!
Format: Hardcover
Great service and timely delivery. Book was like new!
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Reviewed in the United States on January 13, 2025
★★★★★ 2
Will Make you Cry
Format: Hardcover
Many tears.
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Reviewed in the United States on February 25, 2025
★★★★★ 1
New book was used!!
Format: Hardcover
Received a used book instead of a new book, which i had ordered. Had to return it.
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Reviewed in the United States on February 15, 2025