S65/S85 Trojan Valve Guides

Specifications:

• Made in the UK 
• Developed as part of the Sxx-EVO programs. 
• Machined from Trojan alloy;
  • Highest strength copper-nickel-silicon alloy. 
  • Superior thermal conductivity to dissipate heat from valves, most critical in high RPM applications. 
  • Extremely high accuracy to reduce machining time and risk of damage to the cylinder heads. 
    
• Designed for S65 and S85 original intake and exhaust valves specifications.
  1. Intake: 0.1954 to 0.1960" / 4.965 to 4.9790 mm
  2. Exhaust: 0.1949 to 0.1954" / 4.951 to 4.965 mm
• Sold as complete sets per engine.