GSC Power Division Subaru Camshafts & Valvetrain

GSC Power Division Valve 36mm EJ20 EJ257

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.

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 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

GSC Power-Division Viton Valve Stem Seals for the Subaru EJ257, EJ207, and EJ205 6mm seal set. These are an upgrade from the standard OEM material to help cope with the higher heat caused increasing the performance of your engine. Sold as a set of 16

GSC Power-Division Super Alloy Exhaust Valves for EJ20/25 Turbo are for those running high horsepower, high EGT set ups that need a valve that will last in 2000°F conditions. The Super Alloy Exhaust valves have chrome polished stems to create a smooth, durable finish for added life and better lubricity, especially when paired with the GSC Manganese bronze valve guides. Strength, heat resistance, and performance are engineered into every valve. Under head dish is maximized for weight savings while swirl polished and backcut heads promote better air flow without sacrificing durability.
GSC Power Division Valve Subaru Turbo

GSC Power-Division Super Alloy Exhaust Valves for EJ20/25 Turbo are for those running high horsepower, high EGT set ups that need a valve that will last in 2000°F conditions. The Super Alloy Exhaust valves have chrome polished stems to create a smooth, durable finish for added life and better lubricity, especially when paired with the GSC Manganese bronze valve guides. Strength, heat resistance, and performance are engineered into every valve. Under head dish is maximized for weight savings while swirl polished and backcut heads promote better air flow without sacrificing durability.

GSC Power-Division Billet S2 camshafts for the Subaru EJ207 version 7 and above with single AVCS. These cams are built to suit higher horsepower engine builds with a power range of 500 WHP and above.  Certain modifications are recommended to utilize the true potential of the S2's including an upgraded engine block, built/ported heads, and dyno engine tuning. Upgraded valve springs are required.  Due to the added lift and duration, cylinder head clearancing may be required. GSC Power Division S2 Camshaft subaru

• Check cylinder head for lobe clearancing.  

GSC Power-Division Exhaust Valve Guide for Subaru EJ20/25 Series (EJ205, EJ207, EJ255, EJ257, EJ257B), stopper style GSC Power Division Exhaust Guide Subaru

• Standard sized sold as set of 8 or individually
• Oversized sold individually as +0.001" and +0.003" 

Gsc power shop is operated by APPD ltd, we provide you with an excellent shopping experience as our clients’ satisfaction matter a lot. We have the perfect combination of GSC camshafts & valvtrain components that are tailored to meet your needs. Even if you are not sure of what you want, our e-shop has got several ways to help you identify your needs. Everything about gsc power shop revolves around our commitment to help you choose the right product for your application . We have been operating for over 20 years in the aftermarket performance industry  and we have managed to build up a reputable establishment online. We have a great team and aim to grow our business more and more, offering our customers the best Products. If you have any questions about our products, or if would like to check the availability of an item, please use the “Contact Us” page to get in touch.

GSC Power Division Exhaust Valve Subaru

GSC Power-Division Super Alloy Exhaust Valves for EJ20/25 Turbo are for those running high horsepower, high EGT set ups that need a valve that will last in 2000°F conditions. The Super Alloy Exhaust valves have chrome polished stems to create a smooth, durable finish for added life and better lubricity, especially when paired with the GSC Manganese bronze valve guides. Strength, heat resistance, and performance are engineered into every valve. Under head dish is maximized for weight savings while swirl polished and backcut heads promote better air flow without sacrificing durability.

• Max RPM: 9,500 RPM
• Max boost: 50 psi

The GSC Power-Division Dual Valve Spring Kit with Titani9um Retainers for the Subaru 2015 WRX, BRZ and Toyota GT86 includes 16 titanium retainers, 16 dual valve spring sets, and 16 spring seats. This dual cylindrical set is made from the same high quality wire as our Beehive Kits and utilizes a Nano-peened finishing process to allow for the lowest possible fatigue loss rate.  GSC Power Division Valve Spring FA20 

GSC Power-Division Viton Valve Stem Seals kit for the Subaru/Scion FA Engine GSC Power Division Stem Seals Scion. These are an upgrade from the standard OEM material to help cope with the higher heat caused increasing the performance of your engine.

Sold as a set of 16

GSC Power Division High Pressure Conical Valve Spring with Ti Retainer for Subaru Turbo EJ Platforms includes 16 titanium retainers, 16 conical valve springs, and 16 chromoly valve spring seats. High RPM and High Boost levels are not a problem on these kits. 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.

• Max RPM: 10,000 RPM
• Max boost: 40 psi

GSC Power-Division Billet S1 camshafts for the Subaru EJ207 Version 7 and above with single AVCS. These will not drop any low end power, and will create more power and torque across the entire RPM range. Good for stock frame upgraded turbos or up to 500 WHP upgrades. Upgraded valve springs are required.

• Due to the lobe size, head castings may need to be filed down slightly for clearance - Please check during install

GSC Power Division billet S3 camshafts for the Subaru EJ207 version 7 and above with single AVCS. These camshafts are designed for drag use only, fully built engines with a power range of 750-1,300 WHP and an RPM range of 4,500-9,500. Certain engine modifications are required to utilize the true potential of the S3s: built bottom end (closed deck or sleeved), built/ported head, all supporting fueling upgrades, and aggressive dyno tuning. Upgraded valve springs are required. GSC Power Division S3 Camshaft EJ207

• Cylinder head clearancing required. 
• Please maintain 0.020" (0.5mm) minimum clearance from the cylinder head casting

GSC Power-Division Stopper Style Intake Valve Guide for FA20 all (WRX/BRZ) GSC Power Division Intake guide FA20

• Standard sized sold as set of 8 or individually
• Oversized sold individually as +0.001" and +0.003" 

Gsc power shop is operated by APPD ltd, we provide you with an excellent shopping experience as our clients’ satisfaction matter a lot. We have the perfect combination of GSC camshafts & valvtrain components that are tailored to meet your needs. Even if you are not sure of what you want, our e-shop has got several ways to help you identify your needs. Everything about gsc power shop revolves around our commitment to help you choose the right product for your application . We have been operating for over 20 years in the aftermarket performance industry  and we have managed to build up a reputable establishment online. We have a great team and aim to grow our business more and more, offering our customers the best Products. If you have any questions about our products, or if would like to check the availability of an item, please use the “Contact Us” page to get in touch.

GSC Power-Division Stoppe Style Exhaust Valve Guide for FA20 all (WRX/BRZ) GSC Power Division Valve Guide FA20

• Standard sized sold as set of 8 or individually
• Oversized sold individually as +0.001" and +0.003" 

Gsc power shop is operated by APPD ltd, we provide you with an excellent shopping experience as our clients’ satisfaction matter a lot. We have the perfect combination of GSC camshafts & valvtrain components that are tailored to meet your needs. Even if you are not sure of what you want, our e-shop has got several ways to help you identify your needs. Everything about gsc power shop revolves around our commitment to help you choose the right product for your application . We have been operating for over 20 years in the aftermarket performance industry  and we have managed to build up a reputable establishment online. We have a great team and aim to grow our business more and more, offering our customers the best Products. If you have any questions about our products, or if would like to check the availability of an item, please use the “Contact Us” page to get in touch.

GSC Power-Division Intake Valve Guide for FA20 all (WRX/BRZ) GSC Power Division Valve Guide FA20

• Standard sized sold as set of 8 or individually
• Oversized sold individually as +0.001" and +0.003" 

Gsc power shop is operated by APPD ltd, we provide you with an excellent shopping experience as our clients’ satisfaction matter a lot. We have the perfect combination of GSC camshafts & valvtrain components that are tailored to meet your needs. Even if you are not sure of what you want, our e-shop has got several ways to help you identify your needs. Everything about gsc power shop revolves around our commitment to help you choose the right product for your application . We have been operating for over 20 years in the aftermarket performance industry  and we have managed to build up a reputable establishment online. We have a great team and aim to grow our business more and more, offering our customers the best Products. If you have any questions about our products, or if would like to check the availability of an item, please use the “Contact Us” page to get in touch.

GSC Power-Division Exhaust Valve Guide for FA20 all (WRX/BRZ) GSC Power Division Exhaust Guide FA20 

• Standard sized sold as set of 8 or individually
• Oversized sold individually as +0.001" and +0.003" 

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 WRX Intake Valve new valves are sure to become the industry standard for sport compact performance valves.

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 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

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 WRX FA20F STD new valves are sure to become the industry standard for sport compact performance valves.

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 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

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 WRX Exhaust Valve new valves are sure to become the industry standard for sport compact performance valves.

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 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

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 WRX STD Exhaust new valves are sure to become the industry standard for sport compact performance valves.

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 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

• Max RPM: 9,500 RPM
• Max boost: 35 psi

The GSC Power-Division Beehive Spring Kit with Titanium Retainers for the Subaru 2015 WRX, BRZ and Scion FRS includes 16 titanium retainers, 16 beehive valve springs, and 16 spring seats. Our beehive spring utilizes advanced material heat treatment methods for superior load loss capabilities. These springs have the highest level of spring load retention while still maintaining good fatigue throughout the life of the spring. Beehive springs allow for the use of a smaller, lighter retainer allowing for higher RPM and more valve control. This is absolutely the most lightweight, strongest spring kit for the FA20 platform GSC Power Division Valve Spring FA20

GSC Power Division Single Valve FA20 

• Max RPM: 8,200 RPM
• Max boost: 20 psi

The GSC Power-Division Single Cylindrical Valve Spring Kit with Ti Retainers for the Subaru 2015+WRX, BRZ, Scion FRS and Toyota FT86 using the new 2.0L NA boxer engine includes 16 titanium retainers, 16 cylindrical valve springs, and 16 spring seats. These round wire springs still have the same high quality attention to detail as our popular beehive kits. The GSC5756 is Nano-peened and batched according to seat pressure within our specs. The lightweight titanium retainers are CNC machined with tolerances and repeatability that are unmatched by other brands. This keeps a consistent seat pressure across the head for ultimate reliability and performance.

*Flip phone to landscape to see full table!*

• Max RPM: 9,000 RPM 

GSC Power Division Spring Subaru EZ36 Everything about gsc power shop revolves around our commitment to help you choose the right product for your application . We have been operating for over 20 years in the aftermarket performance industry  and we have managed to build up a reputable establishment online. We have a great team and aim to grow our business more and more, offering our customers the best Products. If you have any questions about our products, or if would like to check the availability of an item, please use the “Contact Us” page to get in touch. GSC Power Division Spring Subaru EZ36

 GSC Power Division Single Spring kit Subaru EZ36

• Max RPM: 8,500 RPM
  GSC Power Division Single Spring Subaru EZ36
  
  

GSC Power-Division Intake OR Exhuast Valve Guide for Subaru EJ SOHC, smooth style - 2 sets needed for complete engine GSC Power Division Intake Guide Subaru

• Sold as set of 8 or individually 
• Oversized sold individually as +.001" and +.003" 

Gsc power shop is operated by APPD ltd, we provide you with an excellent shopping experience as our clients’ satisfaction matter a lot. We have the perfect combination of GSC camshafts & valvtrain components that are tailored to meet your needs. Even if you are not sure of what you want, our e-shop has got several ways to help you identify your needs. Everything about gsc power shop revolves around our commitment to help you choose the right product for your application . We have been operating for over 20 years in the aftermarket performance industry  and we have managed to build up a reputable establishment online. We have a great team and aim to grow our business more and more, offering our customers the best Products. If you have any questions about our products, or if would like to check the availability of an item, please use the “Contact Us” page to get in touch.

GSC Power-Division Intake OR Exhuast Valve Guide for Subaru EJ SOHC, stopper style - 2 sets needed for complete engine GSC Power Division Valve Guide Subaru

• Sold as set of 8 or individually 

Gsc power shop is operated by APPD ltd, we provide you with an excellent shopping experience as our clients’ satisfaction matter a lot. We have the perfect combination of GSC camshafts & valvtrain components that are tailored to meet your needs. Even if you are not sure of what you want, our e-shop has got several ways to help you identify your needs. Everything about gsc power shop revolves around our commitment to help you choose the right product for your application . We have been operating for over 20 years in the aftermarket performance industry  and we have managed to build up a reputable establishment online. We have a great team and aim to grow our business more and more, offering our customers the best Products. If you have any questions about our products, or if would like to check the availability of an item, please use the “Contact Us” page to get in touch.

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 Intake Valve Toyota  valves are sure to become the industry standard for sport compact performance valves.

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 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

SPECIAL NOTE: 2014+ Model Fitment ONLY