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Cosworth Dual Valve Spring / Titanium Retainer Set ( Part Number:COS1 KK3839)

Cosworth Dual Valve Spring / Titanium Retainer Set

Part #: COS1 KK3839


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Specifications


Brand: Cosworth
Head Alteration Required: No
Inner Valve Spring: Yes
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

Description

Valve springs are one of the most stressed components within the engine. The springs can cycle thousands of times per hour. When high performance camshafts, with their longer duration and higher lift, are installed the stress can be increased even further. Cosworth valve springs are designed to control the valve under these demanding conditions and are wound from high quality steel with chamfered ends to reduce wear on valve train components. Designed to be used with original retainers with no machining required. These are the perfect complement to their range of high performance camshafts with increased seat pressure ensuring maximum performance and durability.
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RallySportDirect.com Reviews:

  • Q: RPM LIMIT ??  Caliman 1 year ago

    Answer

    What's the rpm limit of this kit? ??


    • A: These don't have an official RPM limit rating, unless your running a dry sump oiling system you'll spin your bearings before you exceed the limit of these titanium retainers.


      Connor M. 1 year ago
  • Q: can I keep my stock valves  silo4sho60292 4 years ago

    Answer

    I have an 08 sti. If i install this kit can I keep my stock valves? Or do I have to go with 1mm over valves? Thanks!


    • A: These upgraded valve springs and retainers are compatible with your factory valves as well as the Cosworth upgraded valves.


      Tanner S. 4 years ago