CALL US (855) 998-8726 GSC Power Division 21-4N Intake Valve Set of 8-36mm (+1mm) (gsc2124-8)
134.81134.811
GSC Power Division 21-4N Intake Valve Set of 8-36mm (+1mm) (gsc2124-8)21-4N material Chrome Polished
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 software, 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 21-4N Intake Valve Set of 8-36m
GSC Power Division 21-4N Intake Valve Set of 8-36m

GSC Power-Division

GSC Power Division 21-4N Intake Valve Set of 8-36mm (+1mm) (gsc2124-8)

21-4N material Chrome Polished

$134.81
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Details
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 software, we have created a stronger and higher flowing valve head design. We ... read more
  • 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 micro polished to allow for less oil retention on the stem, which creates less drag on the stem to guide for a smoother motion
  • 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
  • For more questions about this product, please Contact Us
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 software, 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 for better sealing under extreme conditions and more consistent performance throughout the life of the valve. GSC Power-Division's new valves are sure to become the industry standard for sport compact performance valves.

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 micro polished to allow for less oil retention on the stem, which creates less drag on the stem to guide for a smoother motion
  • 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 groove 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 upgraded keeper/lock. It is not mandatory, but it is suggested, that any valve lock not be reused on performance applications due to material grooving
WARNING: This product can expose you to chemicals including Nickel, which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Application List
ImageSKU / Part NoApplicationDetailStockPriceAdd to Cart
2124-8 2124-8Scion FR-S (2013)2.0L H4 FI GAS | FA20 | Naturally AspiratedIn Stock$134.81BUY
+ -
2124-8 2124-8Subaru BRZ (2013)2.0L H4 FI GAS | FA20 | Naturally AspiratedIn Stock$134.81BUY
+ -
Specifications
Type
Intake
Stem Diameter
5.5mm
Length
103.25mm
Head Diameter
36.00mm
Material
21-4N
Finish
Chrome Polished
Quantity
8
Return Policy

At JM Auto Racing we make returns and other client services as easy as possible. Our mission is to provide you with the best products and the best service in the automotive industry. We understand that sometimes, clients change their minds about products that they order or simply do not need them anymore. We also know that clients are cautious about terms and conditions since they are often tricky and misleading. Our goal is to make the return or exchange process trustworthy and as simple as 1-2-3.

Returns & Exchanges
If you are not satisfied with your purchase for any reason, we will be happy to accept a return for a refund or exchange on products in new/unused condition within 30 days of delivery. For orders placed during the holiday season from November 15th to December 31st, the return period is extended to 60 days. The following rules apply:

  • All returns and exchanges must be made via our Return Procedure with a valid & signed RMA form.
  • Returns will have a flat 15% restocking fee.
  • Product(s) must be in new condition and in the original packaging (please do not assemble, install, or modify the product in any way). In the event of fitment, flaw or defect pictures may be necessary to complete your request.
  • Any product that was used or fully/partially installed is non-returnable.
  • In some cases, return of the physical product may not be required. For these products, instructions will be provided on how to process a field destroy or dispose of the original item.
  • The few exceptions for items that cannot be returned include:
    • Items classified as “special order” or “made to order”
    • Custom Wheels & Tires Packages
    • Electronics
    • Any non-EPA compliant product including but non limited to catless test pipes, downpipes, headers and high flow cats. We will try to make as many accomadations as possible however a 25% restocking fee will apply. Please contact us to learn more.
  • To start your return please click HERE

Cancellations
We all know that things happen a people change their mind as soon as the purchase things. We take pride in how quickly we get things out the door and with 4 warehouses to ship from plus stock owned at our manufacturers, that speed is always increasing. This is why we only except full cancellations within 30 minutes of placing an in stock order. This helps us ensure your package gets out on the truck immediately or can be flagged before it goes through the packaging process. For orders that are not in stock or special order, we allow 24 hours. Cancellations can be done online by following the instructions found HERE or by emailing [email protected] ,

Your request will be processed as quickly as possible, but please note that sometimes products ship quicker than expected. After 24 hours, or after an out of stock item has been confirmed, fees will apply to all cancellations with the exception of Special Order items, made to order items or custom built items; which can not be cancelled after the 24 hour period. Items confirmed on reserve or pre-ordered are subject to a 10% cancellation fee.

Cancellations are subject to a 10% cancellation fee. This fee is not to rip you off in any way. When you place an order, we lose 3% due to credit card processing, and also another 3% to credit your account. The other 4% is much less then what is needed to cover all other costs and expenses lost by cancelling an order, that was already processed. This fee is will only be imposed on orders that have not shipped. If a special order has been placed, such as pistons, turbo's, etc., and the items are built and ready to ship out, and a cancellation is requested, a 25% cancellation fee will be imposed IF possible to be cancelled.

  • To start your cancel please click HERE

What are my shipping fees?
For orders delivered within the continental US where reason for return isn't a result of a JM Auto Racing error, the cost of the initial shipping charge and a return fee will be deducted from your refund. A prepaid shipping label(s) will be provided.
Freight, international & non-continental US returns are accepted, however coordination of return shipping is the responsibility of the client. In the event an error is made by JM Auto Racing, a return shipping label will be provided.

Сore deposits
Some products sold on JM Auto Racing include a core deposit. These parts have a deposit that is charged upon purchase and fully refunded upon the return of the core. Cores must be in rebuildable condition and matching vehicle application to the product sold. Once the product is received and inspected, the deposit will be refunded to your original form of payment. Note: Product cores returned that are not fully assembled or are not the unit that was removed from the vehicle, will not be refunded and the core will be discarded. Detailed instructions on Core Deposit Returns can be found here.

Defective, damaged, or incorrect products
We all know that accidents happen sometimes. If your product(s) arrive defective, damaged, or simply incorrect, please contact our customer service department as soon as possible. Please do not attempt to use, install, modify, or repair the part! We will send you a replacement part and provide you with a prepaid return label to return the defective part. In some instances, return of the product may not be required. Products must be returned to us within 30 days. If the damage was caused by a shipping courier, we will schedule a damage pick up by the courier. Photos of the damage, defect, or fitment issue may be requested in order to correctly process your request. For items mispackaged or missing, returns and replacements will be handeled as warranty requests, subject to manufacturer involvement and normally handled within 24-48 hours. Please note that products must be in the original packaging and there are additional requirements for products that ship freight.

LTL and Freight Shipments will cover the delivery of most oversized items, including but not limited to, body kits, hoods, trunks, spoilers, doors, roll cages. Items should be thoroughly inspected at time of delivery. Any damage NEEDS to be notated on the Bill of Lading prior to the driver leaving for an insurance to be valid. If damage, is not noted, the insurance is voided out and will need to be dealt with between you and the shipping carrier.

Billing, refunds & credits
Payment for orders placed using PayPal of Affirm will be captured as soon as the order has been successfully placed. Payments for orders placed using a debit or credit card will be authorized only and captured upon shipping. What does this mean? If your order is in stock, it will be charged normally. For out-of-stock items arriving within 30 days, you may see the authorization temporarily fall off. The funds will be placed back into your account and you won't see the pending charge from us. Once the item ships, you will see the funds deducted and the charge posted to your account. For out-of-stock items after 30 days, the above will take place, however we will have to recharge your card once the item is ready to ship.

Refunds for returned products are issued with 3-5 business days once they are received by our warehouse and inspected. Refunds will be issued via the same payment method originally used to place the order (Credit Card, PayPal, Google, Affirm, Check). All returns, where JM Auto Racing is not at fault, will have 15% restocking fee less than cost of freight. Free shipping items will have the initial freight fees deducted from the final refund. Shipping is only free if you keep the item you purchased. Some items will have a higher restocking fee. This information will be revealed to you up front upon requesting a return. Once the refund has been issued a confirmation email will be sent. Please allow an additional 5-7 days for the credit to appear on your account.

Shipping & delivery
To ensure a fast and safe delivery we use FedEx, DHL, Ontrac, USPS, & UPS Ground/Air shipping services. Available shipping methods may vary for different type of products and shipping destinations. Most products in stock ship same day, or within 1 business day after which its delivery can be tracked via tracking number sent to your email. For custom or made to order items shipping time varies as they may have to be manufactured, painted, embroidered, or assembled.

Please keep the following in mind:

  • Products that are oversized must ship truck freight / LTL which differs from ground shipments. NOTE: These oversized items require inspection and a signature upon delivery. For more information on freight shipping click here.
  • Shipments to Canada are treated as all other international shipments. It is the recipient's responsibility to pay all applicable duties, taxes, & brokerage fees. Detailed Info can be found here here.
  • Shipments to HI, AK, PR, Guam, Virgin Islands, APOs, & Canada might require extra shipping charges. International shipping quotes will be e-mailed to the customer before the credit card is charged.
  • Oversized items such as hoods, body kits, bumpers, tonneau covers, roofs, trunks and spoilers may require additional postage that is not displayed on the website. You will be contacted prior to the item shipping to confirm.

To request an international shipping quote before placing an orderIf you would like special shipping arrangements, please contact us via live chat, email or call us at 1.855.998.8726

Disclaimer
In effort to provide our valued clients with the most up to date and accurate information, JM Auto Racing is continuously implementing real-time updates to our online superstore. Due to the immediate nature of these updates the correction of any errors and/or omissions can happen at any time without prior notice. This information may include but is not limited to pricing, availability, suggested use, fitment, compatibility, and warranties.

JM Auto Racing is not responsible for any additional charges, labor, loss, or damage incurred as a result of information, correct or incorrect, referenced or products purchased from JM Auto Racing. While we work to avoid any errors or omissions that may appear on the JM Auto Racing website, we do reserve the right to cancel any undelivered orders based on inaccurate information. more details

Additional Info

GSC Power-Division was started to fill the need for high-quality, performance camshafts and valvetrain components for the Japanese Sport Compact cars of today. With little worthwhile offerings in the market and a passion for quality and performance, GSC has created cutting-edge camshafts and valvetrain components that are lighter and handle the most extreme conditions of the turbo sport compact engine. GSC valvetrain components are created using the world's most advanced design, FEA, and flow simulation softwares to aid with real world performance testing. The company's cast camshafts are always ground on new quality chill cast or ductile iron billet blanks, its forged billet cams are turned from solid bar stock and ground on one of the most advanced CNC grinding machines in the world.

JM AUTO RACING carries a wide range of performance auto parts, as well as car accessories and truck accessories. Whether it be body styling such as body kits, hoods, trunks, splitters, spoilers, and carbon fiber items; performance auto parts and car accessories such as turbo kits, superchargers, intakes, exhaust systems, cam gears, clutches and flywheels; suspension accessories such as coilovers, shocks, struts, springs, sway and strut bars, alignment kits and tie bars; or lighting accessories such as projector and euro headlights, HID kits, bumper lights, taillights, brake lights and undercar lighting, JM AUTO RACING has it all. Don't see what you're looking for? No problem. Give us a call or send us an email because chances are JM AUTO RACING has the items in stock.

Warranty

GSC Power-Division LLC warranties all of our camshafts, valve train, and internal engine parts will be free from any and all manufacturing defects. Our warranty is only valid as long as our products are installed correctly by a certified SAE technician or certified engine builder to either GSC Power-Division LLC's provided specifications or to the original manufacturer's specifications (if no specs are given). GSC Power-Division LLC will not warranty any second hand or transferred products. GSC Power-Division LLC's warranty is with the original purchaser of the product(s) and is valid for one (1) year from the initial date of shipment. Warranty will be void on all products that show evidence of improper application or installation, abuse, lack of proper maintenance, alteration from the original configuration of the product, or not used in conjunction with matching components. GSC Power-Division LLC does not warranty any of its products when used for race-only applications as well as non-automotive use of our line of automotive products. GSC Power-Division LLC tries to ensure that every item supplied is suitable for its specific, outlined application. Due to the possibility of variation of modifications made on performance engines that affect performance, economy, reliability, and engine life; the final responsibility of our product rests with the person performing the installation. GSC Power-Division LLC's Technical Department is available and should be contacted if any issues, questions, or concerns are discovered with our products. GSC Power-Division LLC's obligation under this warranty is limited to the repair or replacement solely of GSC Power-Division LLC products. On occurrence of a problem, please contact GSC Power-Division LLC's Technical Department to arrange for an inspection of the item. No claim will be accepted without the prior approval of GSC Power-Division LLC. All camshafts manufactured by GSC Power-Division LLC are intended for off-road use only and should never be used on public roads.

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