996/997 Turbo Valve Guides

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      GSC Power-Division valve guides are made from a proprietary blend of Manganese Bronze and turned on dedicated precision CNC turning centers. With performance and aftermarket installation in mind, we hold extremely tight tolerances on through-hole concentricity to outside diameter which minimizes the required honing time for the installer. True-to-size outside diameters minimize honing of guide bosses on cylinder heads that don't require boss service. Our guides are easier to install and shaped to improve air flow instead of just copying OEM design.
      2 products

      2 products

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      GSC Power-Division Intake Valve Guide STD for Porsche 996/997 Turbo 911
      £76.43 £70.43 Save £6.00
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      GSC Power-Division Exhaust Valve Guide for Porsche 996/997 Turbo 911
      £71.79 £66.15 Save £5.64
      GSC Power-Division Intake Valve Guide STD for Porsche 996/997 Turbo 911 Motor Vehicle Engine Parts GSC POWER DIVISION

      GSC Power-Division Intake Valve Guide STD for Porsche 996/997 Turbo 911

      GSC3058-12

      £76.43 £70.43 Save £6.00
      /
      Shipping calculated at checkout.

      GSC Power-Division Intake Valve Guide for Porsche 996/997 Turbo 911 GSC Power Division Valve Guide Porsche

      • Standard sized sold as set of 12 or individually 
      • Oversized sold individually as +0.001" and +0.003" 
      GSC3058 Standard (in/mm)
      Total Length 1.450 / 36.83
      Outer Diameter 0.4157 / 10.56
      Valve Stem Diameter 6mm

       

       

       

      GSC Power-Division Exhaust Valve Guide for Audi R8 V10/Lamborgini Gallardo V10 Motor Vehicle Engine Parts GSC POWER DIVISION

      GSC Power-Division Exhaust Valve Guide for Porsche 996/997 Turbo 911

      GSC3057-12

      £71.79 £66.15 Save £5.64
      /
      Shipping calculated at checkout.

      GSC Power-Division Exhaust Valve Guide for Porsche 996/997 Turbo 911 GSC Power Division Intake Guide Porsche

      • Standard sized sold as set of 12 or individually 
      • Oversized sold individually as +0.001" and +0.003" 

      GSC3057 Standard (in/mm)
      Total Length 1.690 / 42.93
      Outer Diameter 0.4157 / 10.56
      Valve Stem Diameter 6mm