Description

  • Fully CNC-ported
  • 6-bolt-per-cylinder bolt pattern
  • LS7-style rectangle port design
  • 12° valve angle; minimum 4.100″ bore
  • 70-cc “as-cast” combustion chambers
  • Uses LS7 rocker arms/LS7 bolts
  • 397 cfm@0.700″ intake, 230 cfm @ 0.700″ exhaust