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GSC Power-Division Single Beehive Valve Spring Set w/ Titanium Retainers ( Part Number:GSC 5043)

GSC Power-Division Single Beehive Valve Spring Set w/ Titanium Retainers - Subaru Models (inc. 2002-2014 WRX / 2004+ STI)

MODEL # GSC 5043
Manufacturer Part # 5043

$369.75

MSRP: $435.00

24
hours
In stock! Ships same day
Qualifies for free shipping!


Description

GSC Power-Division Beehive springs feature some of the most impressive manufacturing techniques in the industry. Their beehive spring uses an ovate wire which utilizes advanced material heat treatment methods for superior load loss capabilities. What this means to you is their spring has the highest level of spring load retention while still maintaining good fatigue threw out the life of the spring. Only the best materials go into the GSC Power-Division Beehive valve spring. Each batch is scrutinized for tensile strength properties, ductility, inclusion content, and fatigue toughness.

The beehive valve spring shape has become the buzz lately. Some have enquired as to the benefits of a beehive spring vs. the dual springs that are sold by others. While some might find that the beehive spring design is new it has been used commonly in many OE engines as well as in all of the NASCAR and F1 engines of today. Why? The beehive shape is more stable than standard single or dual cylindrical springs. The beehive design which incorporates an ovate wire is more than capable of the performance demands that were previously only matched by a Dual Springs. With the smaller and lighter retainer used on the beehive valve spring allow for higher RPM and more valve control. So beehive valve springs, with their lighter weight retainers allow for engine's to rev quicker and maintain a more stable valve motion than the traditional cylindrical springs of yesteryear.

Beehive Spring Benefits:
•Rev faster
•Lighter components
•More durable design
•Less stress on valvetrain components
•Lower spring frequency for more precise valve control.
•More valve control equals more aggressive cam profiles
•All of these items help to return more power for you to enjoy!

The GSC 5043 Beehive valve spring set, and Grade 5 Titanium retainers. This kit is capable of 9500+ RPMS, with as much as 11.5mm lift cams.
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Specifications


Brand: GSC PowerDivision
Head Alteration Required: No
Inner Valve Spring: No
Location: Intake and Exhaust
Machining Required: No
Retainers: Titanium

Mfgr. Warranty: No Warranty
Condition: New Product
Return Policy:

RallySport Guarantee - 30 Days


Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
Standard

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Verified Purchase

Easy install and made with good quality
Michaeltanghk 2 years ago
Easy install and made with good quality A direct bolt on to a JDM Ej207 STI AVCS head
Comment

Well Made, Very awesome upgrade
DaveinNorCal 5 years ago
I have a stock-cammed, mildly build motor. I was looking for a better valve spring for higher RPM track driving. I paired these with GSC Valves and a 5-angle grind. What I notice is how the car likes revving. It feels like it revs freely and pulls with ease to the redline. I think of the motor as ferrari-esque, meaning it feels effortless rolling along at 5000 RPM. I notice a little more valve train noise at idle, but that would expected with a stiffer spring. I would get the beehive over the standard for the added high rpm abilities, even if you leave your redline set near stock.
Comment

  • Q: How much boost  Caliman 29 days ago

    Answer

    Hi. How much boost this valves can handle??


    • A: The valve springs and retainers are not related by how much "boost" they can handle. If it helps this kit is capable of 9500+ RPMS


      Luis L. 28 days ago
    • A: But you wrote it's not a problem for boost but the kit support 35psi max... please confirm if I can use more boost than 35psi??


      Caliman 22 days ago
  • Q: GSC Beehive Springs  mrkrueger19125 2 years ago

    Answer

    Anything else need to install into stock WRX heads with stock cams/valves?


    • A: This kit will be all you need to complete the valve springs/retainers on a WRX.


      Brady R 2 years ago
  • Q: Will this fit for JDM GDB STI EJ20 model?  Michaeltanghk 2 years ago

    Answer

    Will this fit for JDM GDB STI EJ20 model?


    • A: This valve spring kit should work on your EJ20, however we cannot guarantee fitment on vehicles from outside the USA.


      Zach G. 2 years ago
    • A: Yes it will work.


      Padilla12 2 years ago
  • Q: High rev  Robbo12789 4 years ago

    Answer

    I'm currently in the process of designing a very high revving boxer. I have yet to be able to find a valve train set-up capable of handling a 12k redline. I will be running a very destroked ej257 block and I'm curious as to whether or not these would be capable of handling that or if you had or know of anything that can


    • A: We would need more information on the head setup to give you an answer to this question. Given the desired 12k RPM limit we would need to know the acceleration and jerk of the lobe profile that you select. The weight of the valves you will be using along with the thickness of the valve tappet and boost pressure.


      Greg @ GSC 4 years ago
  • Q: Shim and bucket  Sasuke83 4 years ago

    Answer

    Does those retainers cope with shim under the bucket? I don't see any bore for that on top of the retainer. I am afraid of falling.


    • A: These are designed to work with factory buckets on the vehicles listed in the confirmed application listing. We have never seen issues with the buckets spitting out the factory shims when used with these springs on the applications that they are intended for.


      Kirill C. 4 years ago
    • A: these nor our 5743 kit is designed to use the Subaru shim-under bucket style, only the Subaru shimless style bucket. We will be releasing the shim-under bucket design in early April for both our Subaru EJ spring kits.


      Greg @ GSC 4 years ago
    • A: Hi Greg, did you release the kit for shim under bucket yet? cheers


      Sasuke83 4 years ago
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