Description

  • 6-bolt-per-cylinder bolt pattern
  • LS7-style rectangle port design
  • Assembled with 2.200″ titanium intake and 1.610″ sodium-filled exhaust valves
  • 12° valve angle; minimum 4.100″ bore
  • 270-cc “as-cast” intake ports, 85-cc “as-cast” exhaust ports
  • 70-cc “as-cast” combustion chambers
  • Handles .650″ list with premium springs
  • Uses LS7 rocker arms/LS7 bolts