Introducing the Dart Pro1 LS7 Compatible Cylinder Head

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Pro1LS 12 285cc CNC PortFinal

Dart’s new PRO1 LS 12° 285cc CNC aluminum rectangle port cylinder head for GM LS7-compatible small block V8 engines take performance to the next level. This fully CNC ported cylinder head offers higher performance and more versatility than factory designs.

The PRO1 LS 12° head has better airflow, more efficient combustion chambers, and more user friendly features than production LS castings. The Dart PRO1 285cc cylinder head retains stock valve angles, stock valve locations and stock valve train mounting to make installation easy and durable.  

PRO1 LS 12° 285cc CNC Features:

  • LS7 compatible
  • Cast Aluminum Alloy
  • High flowing 285cc CNC intake ports
  • 66cc CNC combustion chambers
  • 12° valve angle with 2.200” x 1.625” valve job
  • 6-bolt per cylinder
Pro1LS 12 285cc CNC UpCloseChamber

Available Part Numbers and Applications

Part No.     Configuration for use, valves, and max. Lift

  • 11060000     C-Core Casting 
  • 11061080     Bare head (Dart Rocker Bar Machining) 2.200” / 1.625”         
  • 11061080J     Bare head (Jesel Rocker Bar Machining) 2.200” / 1.625” 
  • 11061182     1.290” Beehive springs for Hydraulic roller 2.200” / 1.625” .625”
  • 11061183     1.295” Dual springs for Hydraulic roller 2.200” / 1.625” .650”
  • 11061184     1.310” Dual springs for Solid roller 2.200” / 1.625” .650”