15.0415.041
Valves #2011-01
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 programs 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 ...
GSC Power DivisionGSC Power Division Valves

GSC Power Division

Valves #2011-01

$15.04
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Description

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 programs 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 or better sealing under extreme conditions and more consistent performance threw the life of the valve. GSC Power-Division’s valves are sure to become the industries standard for sport compact performance valves.

The new Super Alloy Exhaust valves were designed for engines used in extreme conditions. With advancements in manufacturing technology and metallurgy, GSC Power-Division was able to design a blend of Super Alloys that can handle the immense heat and power levels of today’s ultra-high horsepower turbocharged and normally aspirated engines. The GSC Super Alloy exhaust valves are designed to withstand EGT’s between 1800-2000F. Each Super Alloy Exhaust valve utilizes chrome polished stems to create a smooth, durable finish for added life and better lubricity especially when paired with GSC manganese bronze valve guides. Strength, heat resistance and performance are engineered into every valve. In addition, head dish is maximized for weight savings while swirl polished and back cut heads promote better air flow without sacrificing durability.

GSC Power-Division Super Alloy Exhaust valves are available individually or as sets of 8 or 12 depending on the application. Head sizes are either standard or +1mm.

Valve 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 micropolished to allow for less oil retention on the stem which creates less drag on the stem to guide for a smoother motion.
  • Fully nitrated ( this includes the 45 which increases valve life and makes a better seal at the valve seat for improved cylinder pressure) also reduces carbon buildup on the backside of the valve.
  • 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 grove 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 upgrade keeper/lock. It’s not mandatory but it is suggested that any valve lock not be reused on performance applications do to material grooving.

Application List
ImageApplicationDetailPriceAdd to Cart
 Subaru Impreza (1999-2014)$15.04BUY
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 Subaru Impreza (2002-2005) - WRXH4 2.0 | Turbocharged$15.04BUY
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 Subaru Impreza (2004-2014) - WRX STIH4 2.5 | Turbocharged$15.04BUY
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 Subaru WRX STI (2015)H4 2.5 | Turbocharged$15.04BUY
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Return Policy

Our goal is to help you find the right product for your project. However, if your purchase doesn’t fit your needs or you are not completely satisfied with your purchase, please see the information below regarding our return policy.

Returns

To obtain an RMA, you may log in to your account page or email our staff at [email protected] . Once an RMA number is issued, repackage the item securely in its original packaging, include the RMA form inside the box, and ship your return as directed by our support team. If you would like a PREracing staff member to generate a shipping label for you, please contact us.

All items must be in new, unused condition with all original tags and labels attached, and include a Return Merchandise Authorization (RMA) from PREracing.com. All returns must be postmarked within thirty (30) days of the purchase date.

Please note, you will be responsible for all return shipping charges unless otherwise specified by PREracing support. We strongly recommend that you use a trackable method to mail your return.

Refunds

A 35% restocking fee will be charged for all returns unless otherwise agreed upon by PREracing.com PRIOR to an RMA number being created.

Please allow at least five (5) days from the receipt of your item to process your return or exchange. Once we receive your return, we will inspect the condition of your item and initiate your refund or exchange. Refunds may take 1-2 billing cycles to appear on your credit card statement, depending on your credit card company. PREracing will notify you by phone or email when your return/refund has been processed.

What happens if my item proves defective after installation?

Please contact PREracing.com and speak directly with a staff member to explain your circumstance. We may ask you to provide additional information regarding your item’s defective status, which might include photos, video, or other means of evidence to support your claim. In some cases, you may be directed to the manufacturer for warranties, replacements, or returns.

If your item proves defective, we will initiate the RMA process and follow the return process as stated above.

What should I do if I received the wrong item?

Please contact PREracing.com and follow the standard return process procedures listed above. You will not be responsible for return shipping charges. You will, however, be required to return your item to PREracing.com before receiving any replacements or refunds.

What should I do if my shipment was delivered damaged?

Please contact PREracing.com to provide proof of the damaged product. Once we obtain satisfactory proof of the damage, we will issue an RMA and provide a return shipping label for the product. Once we receive the damaged package, we will authorize a replacement item be shipped to you.

Refunds on Shipping Charges

PREracing.com does not refund shipping charges. Please make sure to select the correct shipping carrier and timeline for your particular delivery situation (e.g. delivery to PO box, overnight delivery, etc). If the carrier cannot deliver your package based on the information you provided in your order, we will not be held responsible.

In the rare event PREracing.com makes a shipping error or misses a shipping deadline, we will refund the shipping charges. Please work with a staff member to resolve the situation.

If you return an item that originally qualified for free shipping, the shipping total will be subtracted from your final refund total.

Refused Orders / Non-Delivery

Refused or undeliverable orders that are returned to us will automatically be charged a 35% restocking fee, in addition to all freight charges incurred for the shipment by PREracing.com. We will waive the restocking fee if you pay additional shipping to deliver to a new or corrected address.

Questions

If you have any questions concerning our return policy, please contact us at:

503-619-0055

[email protected]

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Warning

PROP 65 WARNING

Warning: This product can expose you to chemicals which is [are] known to the state of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.p65warnings.ca.gov

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Established in 1998, PREracing specializes in forced induction systems and operates with the goal to provide extreme performance at a reasonable price. PREracing features a service shop, showroom, AWD dyno with full tuning capabilities, and a warehouse packed with inventory.

Contacts

Address
13339 NE Airport Way Suite 500
Portland, OR 97230

Open: 9am-6pm PST

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