DART MACHINERY
Dart Pro 1 LS Gen III CNC Aluminum Cylinder Head 11071142 - 250cc Cathedral Port, Assembled
- PART NUMBER:
- 11071142
- MPN:
- 11071142
- Availability:
- Ships from manufacturer
- Shipping:
- Free Over $98 In U.S. 48
- Type:
- Cathedral Port Cylinder Heads - Assembled
- Material:
- RMR Cast Aluminum
- Assembled:
- Yes
- CNC Ported:
- Yes
- Bolts Per Cylinder:
- 4
- Valve Angle (degrees):
- 15
- Valve Springs Included:
- Yess
- Valve Spring Type:
- Beehive
- Valve Spring Max Lift (in.):
- 0.650"
- Intake Runner Volume (cc):
- 250
- Chamber Volume (cc):
- 68
- Intake Valve (in.):
- 2.080
- Exhaust Valve (in.):
- 1.600
- Accessory Holes:
- Yes
- Quantity:
- Sold Individually
Description
Dart Pro 1 LS Gen III CNC Aluminum Cylinder Head 11071142 - 250cc Cathedral Port, Assembled
Recommended for engines with 4.000” bore or larger. Maximum competition, competition modified drag racing, circle track. Over 7,000 RPM.
Dart’s PRO1 LS 15° 250cc CNC ported Aluminum cathedral port cylinder heads for GM LS series small block V8 engines take performance to the next level. This LS CNC cathedral port head is machined on a dedicated casting with extra thick sections to maintain the proper wall thickness after porting. Due to the large diameter intake valves, the Dart LS CNC head is recommended for use on engines with 4.000 inch and larger cylinder bores. Precise computer controlled CNC machining, multi-angle intake seats, and radiused exhaust seats enhance airflow. Extra material above the ports accommodates valve train upgrades.
Features
- Assembled with 1.290" Beehive Valve Springs for Hydraulic Roller
- Precise Computer Controlled CNC Machining
- Multi-angle intake seats
- Radiused Exhaust Seats
- Accessory Holes
- Heads are sold individually
*Tech Sheet Located in Picture Section