GSC Power Division 4G63T Evo 1-9 / 90-98 DSM Chrome Polished Exhaust Valve - 30.5mm Head

SKU: 0CFXJ | MPN:  2001
Sale price$15.04 USD Regular price$16.85 USD
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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 new valves are sure to become the industries 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 micropolished 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 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.


Vehicle Fitments:

Year Make Model Submodel
1990 - 2001 Acura Integra GS
1992 - 2001 Acura Integra GS-R
1986 - 2001 Acura Integra LS
1987 - 1988 Acura Integra LS Special Edition
1986 - 1998 Acura Integra RS
1995 - 1996 Acura Integra Special Edition
1997 - 2001 Acura Integra Type R
1993 - 1994 Eagle Talon ES, DL
1995 - 1998 Eagle Talon ESi
1990 - 1998 Eagle Talon TSi, Base
1988 - 1991 Honda Civic Base, RT 4WD
1988 - 2000 Honda Civic DX, LX
1990 - 2000 Honda Civic EX
1997 - 2000 Honda Civic EX-R
1999 - 2000 Honda Civic EX-R SIR
1998 - 2000 Honda Civic GX
1996 - 2000 Honda Civic HX
1988 Honda Civic SE
1989 - 2000 Honda Civic Si, CX
1999 Honda Civic Value Package
1992 - 1995 Honda Civic VX
1988 - 1989 Honda Civic Wagovan
1993 - 1997 Honda Civic del Sol Si, S
1994 - 1997 Honda Civic del Sol VTEC
1989 - 1991 Honda CRX Base
1988 Honda CRX DX
1988 - 1991 Honda CRX Si, HF
1992 - 1996 Honda Prelude S, Si
1995 Honda Prelude SE
1992 - 1994 Honda Prelude Si 4WS
1993 - 1996 Honda Prelude VTEC
2003 - 2008 INFINITI FX35 Base
2003 - 2008 INFINITI G35 Base
2007 - 2008 INFINITI G35 Journey, Sport
2004 - 2008 INFINITI G35 X
2008 INFINITI G35 X Sport
2002 - 2004 INFINITI I35 Base
2013 INFINITI JX35 Base
2006 - 2008 INFINITI M35 Base, X
2006 - 2007 INFINITI M35 Sport
2001 - 2003 INFINITI QX4 Base
2015 INFINITI QX60 HEV
2014 - 2015 INFINITI QX60 Perfection, Hybrid, Inspiration, Base
2014 INFINITI QX60 Seduction
1990 - 1997 Mitsubishi Eclipse Base
1990 - 1999 Mitsubishi Eclipse GST, GSX, GS
1995 - 1999 Mitsubishi Eclipse RS
1996 - 1999 Mitsubishi Eclipse Spyder GST, Spyder GS
1991 - 1992 Mitsubishi Galant LS, GSR, Base, GSX, GS, VR-4
2002 Mitsubishi Lancer ES, LS, OZ Rally
2005 Nissan 350Z 35th Anniversary Edition
2003 - 2008 Nissan 350Z Base
2005 - 2009 Nissan 350Z Grand Touring
2007 - 2008 Nissan 350Z Nismo
2003 - 2005 Nissan 350Z Performance
2003 - 2009 Nissan 350Z Touring, Enthusiast
2003 - 2006 Nissan 350Z Track
2002 - 2015 Nissan Altima Base, SL, S
2008 - 2009 Nissan Altima Coupe
2007 - 2011 Nissan Altima Hybrid
2002 - 2009 Nissan Altima SE
2005 - 2006 Nissan Altima SE-R
2013 - 2015 Nissan Altima Sense, Exclusive, SV, Advance
2010 - 2012 Nissan Altima SR
2010 - 2014 Nissan Maxima Base
2012 - 2014 Nissan Maxima Exclusive
2002 - 2003 Nissan Maxima GLE, GXE
2009 Nissan Maxima GXE Sport, Tracking
2002 - 2008 Nissan Maxima SE
2004 - 2006 Nissan Maxima SE Elite
2004 - 2007 Nissan Maxima SL Luxury
2004 Nissan Maxima SL Premium
2004 - 2008 Nissan Maxima SL, SE Touring
2009 - 2014 Nissan Maxima SV, S
2011 - 2014 Nissan Murano CrossCabriolet, SV
2012 - 2014 Nissan Murano Exclusive
2009 - 2014 Nissan Murano LE
2005 - 2014 Nissan Murano S
2003 - 2007 Nissan Murano SE
2003 - 2014 Nissan Murano SL
2001 - 2004 Nissan Pathfinder LE, SE
2013 - 2014 Nissan Pathfinder SL, Advance, S, Platinum, Exclusive, SV, Sense
2014 Nissan Pathfinder SV Hybrid, SL Hybrid, Platinum Hybrid
2001 - 2002 Nissan Pathfinder XE
2005 - 2009 Nissan Quest Base
2004 - 2014 Nissan Quest S, SL
2004 - 2009 Nissan Quest SE
2006 Nissan Quest SL Special Edition
2009 Nissan Quest SLT
2011 - 2014 Nissan Quest SV, LE
1990 - 1994 Plymouth Laser RS, Base

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