S85 Uprated Cylinder Head Valves

Specifications: 

• Made in the USA
  
• Complete set of 40x valves
  • Standard diameter. 
  • Retains single groove design as original. 
• Intake valves:
  • Material: Uprated steel alloy with black nitride coating for higher heat resistance. 
    
• Exhaust valves: 
  • Material: Inconel (original is steel and nickel alloy)
  • Design: 1 piece (original is 2 piece)
    
• Professional installation is required.