Yella Terra - ECOTEC "UltraLite" Roller Rockers
Available in Lift Ratios from 1.7:1 - 1.95:1
Click on images to enlarge
Key Features:
  • Greater strength
  • Increased valve lift
  • Reduces valve guide Wear
  • Less friction
  • Less heat
  • Valve train stability

Roller rockers are an excellent all around modification with no drawbacks, the roller tip reduces friction and vibration while freeing up engine power in the process. The rockers are made from aircraft grade aluminium to be extra stiff and prevent deflection under load and are 33% lighter than standard rockers.

Please purchase through ChipControl Store




Yella Terra - ECOTEC L67 "UltraLite" Roller Rockers
Split Ratio 1.95:1 exhaust / 1.9:1 inlet
Click on images to enlarge
Key Features:
  • Greater strength
  • Increased valve lift
  • Reduces valve guide Wear
  • Less friction
  • Less heat
  • Valve train stability
  • Split ratio to balance air flow

Roller rockers are an excellent all around modification with no drawbacks, the roller tip reduces friction and vibration while freeing up engine power in the process. The rockers are made from aircraft grade aluminium to be extra stiff and prevent deflection under load and are 33% lighter than standard rockers.

Please purchase through ChipControl Store

Yella Terra - LS1 "UltraLite" Roller Rockers
Available in Lifts from 1.7:1 - 1.8:1
Click on images to enlarge
Key Features:
  • Greater strength
  • Increase valve lift
  • Reduces valve guide wear
  • Less friction
  • Less heat
  • Valve train stability

Roller rockers are an excellent all around modification with no drawbacks, the roller tip reduces friction and vibration while freeing up engine power in the process. The rockers are made from aircraft grade aluminium to be extra stiff and prevent deflection under load and are 33% lighter than standard rockers.

Please purchase through ChipControl Store