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GSC SWAG
Categories
- Toyota
- Audi
- Subaru
- Mitsubishi
- Nissan
- Honda
- Ford
- BMW
- Hyundai Genesis
- CAN-AM
- Mazda
- Dodge
- Porsche
- GM
- Lamborghini
- GSC SWAG
- Toyota
- Audi
- Subaru
- Mitsubishi
- Nissan
- Honda
- Ford
- BMW
- Hyundai Genesis
- CAN-AM
- Mazda
- Dodge
- Porsche
- GM
- Lamborghini
-
GSC SWAG
GSC valve train components are created using the world's most advanced design, FEA, and flow simulation software to aid with real world performance testing
55 products
GSC Power-Division +1mm Exhaust Valve 2014+ Subaru/Toyota BRZ/GT86 FA20
GSC2133-8
Regular price £117.18 Sale price £110.07 Save £7.11Stem Diameter (mm) | Overall Length (mm) | Head Diameter (mm) |
5.5 | 97.60 | 30.00 |
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 Exhaust Valve 2014 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
SPECIAL NOTE: 2014+ Model Fitment ONLY
GSC Power-Division +1mm Intake Valve 2013 Subaru/Toyota BRZ/GT86 FA20
GSC2124-8
Regular price £118.23 Sale price £111.05 Save £7.18Stem Diameter (mm) | Overall Length (mm) | Head Diameter (mm) |
5.5 | 103.25 | 36.00 |
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 2013 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
SPECIAL NOTE: 2013 Model Fitment ONLY
GSC Power-Division +1mm Super Alloy Exhaust Valve 2013 Subaru/Toyota BRZ/GT86 FA20
GSC2123-8
Regular price £194.73 Sale price £182.91 Save £11.82Stem Diameter (mm) | Overall Length (mm) | Head Diameter (mm) |
5.5 | 95.15 | 30.00 |
GSC Power-Division Super Alloy Exhaust Valves for FA20 FRS/BRZ 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 Exhaust Valve 2013
GSC Power-Division STD Intake Valve 2014+ Subaru/Toyota BRZ/GT86 FA20
GSC2132-8
Regular price £118.23 Sale price £111.05 Save £7.18GSC Power Division Valve 2014 BRZ GT86
Stem Diameter (mm) | Overall Length (mm) | Head Diameter (mm) |
5.5 | 104.90 | 35.00 |
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
SPECIAL NOTE: 2014+ Model Fitment ONLY
GSC Power-Division STD Exhaust Valve 2014+ Subaru/Toyota BRZ/GT86 FA20
GSC2131-8
Regular price £117.18 Sale price £110.07 Save £7.11GSC Power Division Exhaust 2014 Subaru
Stem Diameter (mm) | Overall Length (mm) | Head Diameter (mm) |
5.5 | 104.90 | 35.00 |
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
SPECIAL NOTE: 2014+ Model Fitment ONLY
GSC Power-Division STD Intake Valve 2013 Subaru/Toyota BRZ/GT86 FA20
GSC2122-8
Regular price £118.23 Sale price £111.05 Save £7.18GSC Power Division Valve 2013 Subaru
Stem Diameter (mm) | Overall Length (mm) | Head Diameter (mm) |
5.5 | 103.25 | 35.00 |
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
SPECIAL NOTE: 2013 Model Fitment ONLY
GSC Power-Division Super Alloy Exhaust Valve 2013 Subaru/Toyota BRZ/GT86 FA20
GSC2121-8
Regular price £194.73 Sale price £182.91 Save £11.82GSC Power Division Exhaust 2013 Subaru
Stem Diameter (mm) | Overall Length (mm) | Head Diameter (mm) |
5.5 | 95.15 | 29.00 |
GSC Power-Division Super Alloy Exhaust Valves for FA20 FRS/BRZ 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.
SPECIAL NOTE: 2013 Model Fitment ONLY
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 S3 Billet Camshaft set for non AVCS Subaru WRX EJ20
GSC7020S3
Regular price £1,097.25 Sale price £1,030.64 Save £66.61GSC Power-Division billet S3 camshafts for the EJ205 WRX Version 5 and 6. These cams are built to suit the high horsepower Subys. With a power range of 700 WHP and up, you need some certain mods to utilize the true potential of the S3s: built motor, with a built/ported head, and a good engine management system. Upgraded valve springs are required; beehive valve springs are recommended, but not required.
- Check Pictures for cam placement. Long nose = Left Side, short nose = Right Side
- Due to the lobe size, head castings will need to be filed down slightly for clearance - Please check during install
- Proper break in and running high zinc oil is a must on flat tappet engines
- Must be installed by an experienced technician
7020S3 | ADV Duration | Duration @ 0.040" | Peak Lift | Center Line |
Intake | 280° | 241° | 11.20mm | 110° |
Exhaust | 280° | 240° | 11.20mm | 115° |
GSC S2 Billet Camshaft set for NON AVCS Subaru WRX EJ20
GSC7020S2
Regular price £1,097.25 Sale price £1,030.64 Save £66.61*Check Pictures for cam placement. Long nose = Left Side, short nose = Right Side
7020S2 | ADV Duration | Duration @ 0.040" | Peak Lift | Center Line |
Intake | 272° | 234° | 10.25mm | 110° |
Exhaust | 272° | 234° | 10.25mm | 115° |
GSC S1 Billet Camshaft set Non AVS Subaru WRX EJ20
GSC7020S1
Regular price £1,097.25 Sale price £1,030.64 Save £66.61*Check Pictures for cam placement. Long nose = Left Side, short nose = Right Side.
7020S1 | ADV Duration | Duration @ 0.040" | Peak Lift | Center Line |
Intake | 266° | 225° | 9.60mm | 110° |
Exhaust | 266° | 224° | 9.60mm | 113° |
GSC Billet S3 Camshaft set for Subaru EJ255/7 with Intake AVCS
GSC7025S3
Regular price £1,175.15 Sale price £1,103.82 Save £71.33GSC Power Division billet S3 camshafts for the USDM STi and WRX with Intake only AVCS. These camshafts are built to suit high horsepower cars with a power range of 750-1000 WHP and a rev range of 4500-9500 RPMs. Specific engine modifications are required to utilize the true potential of these camshafts including a built bottom-end (sleeved or closed deck reccomended), built/ported heads (casting must be clearanced for higher lift), and upgraded valve springs. A standalone ECU or tune with speed density is highly reccomended in order for proper idle characteristics. GSC Power Division Billet S3 Camshaft
- Check Pictures for cam placement. Long nose = Left Side, short nose = Right Side
- Due to the lobe size, head castings will need to be filled down slightly for clearance - Please check during install
- Proper break in and running high zinc oil is a must on flat tappet engines.
- Must be installed by an experienced technician
7025S3 | ADV Duration | Duration @ 0.040" | Peak Lift | Center Line |
Intake | 280° | 240° | 11.55mm | 130° |
Exhaust | 280° | 241° | 11.60mm | 115° |
GSC Billet S1 Camshaft set for Subaru EJ255/7 with Intake AVCS
GSC7025S1
Regular price £1,175.15 Sale price £1,103.82 Save £71.33GSC Power Division billet WRX camshafts for the USDM STi and WRX with Intake only AVCS. GSC Power Division Billet S1 Camshaft Subaru 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. GSC Power Division Billet S1 Camshaft Subaru Upgraded valve springs are required; beehive valve springs are recommended, but not required. GSC Power Division Billet WRX Camshaft
- Check Pictures for cam placement. Long nose = Left Side, short nose = Right Side
- Due to the lobe size, head castings may need to be filed down slightly for clearance - Please check during install
- Proper break in and running high zinc oil is a must on flat tappet engines
- Must be installed by an experienced technician
7025S1 | ADV Duration | Duration @ 0.040" | Peak Lift | Center Line |
Intake | 264° | 226° | 10.80mm | 125° |
Exhaust | 264° | 222° | 10.50mm | 115° |
GSC Power-Division Traditional Intake Valve Guide for Subaru EJ20/25 Series
GSC3028-8
Regular price £40.37 Sale price £37.92 Save £2.45GSC Power-Division Traditional Intake Valve Guide for Subaru EJ20/25 Series (EJ205, EJ207, EJ255, EJ257, EJ257B), smooth style GSC Power Division Intake Guide EJ20
- Standard sized sold as set of 8 or individually
- Oversized sold individually as +0.001" and +0.003"
GSC3028 | Standard (in/mm) |
Total Length | 1.557 / 39.55 |
Outer Diameter | 0.4357 / 11.07 |
Valve Stem Diameter | 6mm |
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 Traditional Exhaust Valve Guide for Subaru EJ20/25 Series
GSC3027-8
Regular price £40.37 Sale price £37.92 Save £2.45GSC Power-Division Traditional Exhaust Valve Guide for Subaru EJ20/25 Series (EJ205, EJ207, EJ255, EJ257, EJ257B), smooth style GSC Power Division Exhaust Guide EJ20
- Standard sized sold as set of 8 or individually
- Oversized sold individually as +0.001" and +0.003"
GSC3027 | Standard (in/mm) |
Total Length | 1.873 / 47.57 |
Outer Diameter | 0.4357 / 11.07 |
Valve Stem Diameter | 6mm |
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 Subaru EJ20/25 Series with stopper
GSC3026-8
Regular price £50.16 Sale price £47.12 Save £3.04GSC Power-Division Intake Valve Guide for Subaru EJ20/25 Series (EJ205, EJ207, EJ255, EJ257, EJ257B), stopper style GSC Power Division Valve Guide EJ20
- Standard sized sold as set of 8 or individually
- Oversized sold individually as +0.001" and +0.003"
GSC3026 | Standard (in/mm) |
Total Length | 1.560 / 39.62 |
Outer Diameter | 0.4357 / 11.07 |
Valve Stem Diameter | 6mm |
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 Super Alloy Exhaust Valve (+1mm) Head for the Subaru EJ20/EJ257 Turbo Engine
GSC2017-8
Regular price £194.73 Sale price £182.91 Save £11.82GSC 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
Stem Diameter (mm) | Overall Length (mm) | Head Diameter (mm) |
6.0 | 104.25 | 33.00 |
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.
SET OF 8
GSC Power-Division Intake Valve 37mm (+1mm) for the Subaru EJ20/EJ257 Turbo Engine
GSC2014-8
Regular price £118.23 Sale price £111.05 Save £7.18Stem Diameter (mm) | Overall Length (mm) | Head Diameter (mm) |
6.0 | 104.00 | 37.00 |
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 Intake Valve Subaru
GSC Power-Division Exhaust Valve 33mm (+1mm) for the Subaru EJ20/EJ257 Turbo Engine
GSC2013-01
Regular price £14.64 Sale price £13.76 Save £0.88Stem Diameter (mm) | Overall Length (mm) | Head Diameter (mm) |
6.0 | 104.25 | 33.00 |
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 Exhaust EJ20/EJ257
GSC Power-Division Exhaust Valve 32mm (STD ) for the Subaru EJ20/EJ257 Turbo Engine
GSC2011-8
Regular price £158.20 Save £-158.20GSC Power Division valve EJ20/EJ257
Stem Diameter (mm) | Overall Length (mm) | Head Diameter (mm) |
6.0 | 104.37 | 32.00 |
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. GSC Power Division Exhaust EJ20/EJ257
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 Dual Conical Valve Spring KIT Titanium Retainer Subaru Turbo EJ
GSC5074
Regular price £588.33 Sale price £552.62 Save £35.71GSC Power-Division Dual Conical Valve Spring Kit with Ti Retainer & Chromoly Seats for the Subaru Turbo EJ platforms includes 16 titanium retainers, 16 dual conical valve spring sets, and 16 chromoly valve spring seats. GSC Power Division Dual Conical Spring Subaru Turbo EJ | GSC POWER GSC5074 Dual Conical Valve Spring Kit with Ti Retainer for the Subaru
GSC5074 Dual Conical Valve Spring Kit with Ti Retainer for the Subaru Turbo EJ |
|||||
Setup |
Coil Bind (in) |
Install Height (in) |
Seat Pressure (lbs) |
Open Pressure, 11.50mm lift |
Maximum Valve Lift (in) |
Dual Conical |
0.790 |
1.368 / 1.092 |
95 |
233lbs @ 0.915" / 0.639" |
0.512 |
- Max RPM: 10,000 RPM
- Max boost: 40 psi
GSC Power Division conical Spring kit Titanium Retainer Subaru Turbo EJ
GSC5073
Regular price £597.55 Sale price £561.28 Save £36.27GSC5073 High Pressure Conical Valve Spring Kit with Ti Retainer for the Subaru Turbo EJ | |||||
Setup | Coil Bind (in) | Install Height (in) | Seat Pressure (lbs) | Open Pressure, 11.50mm lift | Maximum Valve Lift (in) |
HP Conical | 0.818 | 1.303 | 109 | 259lbs @ 0.850" | 0.453 |
- Max RPM: 10,000 RPM
- Max boost: 50 psi
The 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. GSC Power Division high conical Spring 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.
GSC Power-Division Subaru EJ Valve Spring Seats, OEM Replacement
GSC1005
Regular price £19.87 Sale price £18.66 Save £1.21GSC Power-Division Spring Seats are now available for the Subaru Turbo EJ series GSC Power Division Subaru EJ Valve. The GSC1005 is an OEM replacement stamped spring seat, useable with GSC Power-Division 5043 or 5743 upgraded valve spring kits or stock springs as an alternative to expensive dealership parts. Sold as a set of 16.
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 Subaru EJ Valve
GSC Single Valve Spring Ti Kit for Subaru Turbo EJ
GSC5743
Regular price £326.80 Sale price £306.96 Save £19.84GSC Power Division Single Valve Spring
GSC5743 Cylindrical Valve Spring Kit with Ti Retainer for the Subaru Turbo EJ | |||||
Setup | Coil Bind (in) | Install Height (in) | Seat Pressure (lbs) | Open Pressure, 10.50mm lift | Maximum Valve Lift (in) |
Cylindrical | 0.845 | 1.326 | 78 | 197lbs @ 0.913" | 0.420 |
- Max RPM: 8,000 RPM
- Max boost: 32 psi
The GSC Power-Division Single Cylindrical Valve Spring with Ti Retainer for the DOHC Subaru Turbo EJ platforms includes 16 titanium retainers and 16 cylindrical valve springs. These round wire springs still have the same high quality attention to detail as our popular beehive kits. The GSC5743 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.
GSC Beehive Spring set Titanium Ret Subaru Turbo EJ
GSC5043
Regular price £474.43 Sale price £445.63 Save £28.80GSC Power Division Beehive Valve Spring Kit with Ti Retainer for the DOHC Subaru Turbo EJ Platforms includes 16 titanium retainers and 16 beehive valve springs. Our beehive spring is made with an ovate wire which utilizes advanced material heat treatment methods for superior load loss capabilities. GSC Power Division Beehive Spring Subaru 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
GSC5043 Beehive Valve Spring Kit with Ti Retainer for Subaru Turbo EJ Platforms |
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Setup |
Coil Bind (in) |
Install Height (in) |
Seat Pressure (lbs) |
Open Pressure, 11.50mm Lift |
Maximum Valve Lift (in) |
Beehive |
0.825 |
1.363 |
81 |
230lbs @ 0.910" |
0.478 |
- Max RPM: 8,500 RPM
- Max boost: 35 psi
GSC Power Division Billet S3 Camshaft set for Subaru EJ257 Dual AVCS
GSC7026S3
Regular price £1,175.15 Sale price £1,103.82 Save £71.33GSC Power Division billet S3 camshafts for the 08+ Subaru STi EJ257 with Dual AVCS. These camshafts are built to suit high horsepower cars with a power range of 750-1000 WHP and a rev range of 4500-9500 RPMs. Specific engine modifications are required to utilize the true potential of these camshafts including a built bottom-end (sleeved or closed deck reccomended), built/ported heads (casting must be clearanced for higher lift), GSC Power Division Billet S3 Camshaft and upgraded valve springs. A standalone ECU or tune with speed density is highly reccomended in order for proper idle characteristics.
- Check Pictures for cam placement. Long nose = Left Side, short nose = Right Side
- Due to the lobe size head castings will need to be machined down for clearance - Please check during install
- Proper break in and running high zinc oil is a must on flat tappet engines
- Must be installed by an experienced technician
- Check AVCS advance during install - must be done by experienced engine builder
7026S3 | ADV Duration | Duration @ 0.040" | Peak Lift | Center Line |
Intake | 280° | 240° | 11.55mm | 130° |
Exhaust | 280° | 241° | 11.60mm | 128° |
GSC Billet S1 Camshaft set for Subaru EJ257 Dual AVCS
GSC7026S1
Regular price £1,227.40 Sale price £1,152.89 Save £74.51GSC Power Division Billet S1 Camshaft Subaru 2008+ STI EJ257B With Dual AVCS. Good for stock frame turbo or up to 500 WHP (GT35R) upgrades. Upgraded valve springs are required; GSC Power Division Billet S1 Camshaft Subaru Beehive valve springs are recommended but not required.
- Check Pictures for cam placement. Long nose = Left Side. Short nose = Right Side
- Due to the lobe size, head castings will need to be filed down slightly for clearance - Please check during install
7026S1 | ADV Duration | Duration @ 0.040" | Peak Lift | Center Line |
Intake | 264° | 226° | 10.80mm | 125° |
Exhaust | 264° | 222° | 10.50mm | 128° |
GSC Billet S2 Camshaft set for Subaru EJ257 Dual AVCS
GSC7026S2
Regular price £1,175.15 Sale price £1,103.82 Save £71.33GSC Power Division billet S2 camshafts for the 08+ Subaru STi EJ257 with Dual AVCS. These cams are built to suit the higher horsepower Subis. With a power range of 500 WHP and up, you need some certain mods to utilize the true potential of the S2s: built motor, with a built/ported head, and a good engine management system. Upgraded valve springs are required; beehive valve springs are recommended but not required. GSC Power Division Billet S2 Camshaft
- Check Pictures for cam placement. Long nose = Left Side, short nose = Right Side
- Due to the lobe size, head castings will need to be filed down slightly for clearance - Please check during install
- Proper break in and running high zinc oil is a must on flat tappet engines
- Must be installed by an experienced technician
7026S2 | ADV Duration | Duration @ 0.040" | Peak Lift | Center Line |
Intake | 272° | 233° | 10.80mm | 125° |
Exhaust | 272° | 233° | 10.50mm | 128° |