This product has been discontinued

S&S Cycle Cylinder Heads for Evolution Big Twin Engines - Natural - 90-1201


  • Manufacturer: S and S Cycle


Manufacturer Part Number: 90-1201

S&S Cycle Cylinder Heads For Evolution Big Twin Engines - Natural

  • Optimized for smaller displacement engines
  • Chamber designed for stock style flat topped pistons
  • Slight increase in compression (8.8:1 in an 80in. motor)
  • Port design increases flow, while maintaining velocity
  • Set up for .640 maximum lift
  • EFI compatible
  • Available in natural and black wrinkle powder-coated