DART MACHINERY
Dart Pro 1 LS7 Gen III Aluminum Cylinder Head 11061283J - 305cc CNC Rectangle Port, Assembled
- PART NUMBER:
- 11061283J
- MPN:
- 11061283J
- Availability:
- Ships from manufacturer
- Shipping:
- Free Over $98 In U.S. 48
- Type:
- LS7 Cylinder Heads - Assembled
- Material:
- RMR Cast Aluminum
- Assembled:
- Yes
- CNC Ported:
- Yes
- Bolts Per Cylinder:
- 6
- Valve Angle (degrees):
- 12
- Intake Runner Volume (cc):
- 305
- Chamber Volume (cc):
- 68
- Intake Valve (in.):
- 2.250
- Intake Valves Included:
- Yes
- Exhaust Valve (in.):
- 1.600
- Exhaust Valves Included:
- Yes
- Exhaust Location:
- Raised .150"
- Valve Springs Included:
- Yes
- Valve Spring Type:
- Dual
- Valve Spring Max Lift (in.):
- 0.800
- Accessory Holes:
- Yes
- Notes:
- Heads have a 6-bolt per cylinder style bolt pattern. Recommended for use with a 4.125 in. or larger bore.
- Quantity:
- Sold Individually
Description
Dart Pro 1 LS7 Gen III Aluminum Cylinder Head 11061283J - 305cc CNC Rectangle Port, Assembled
Recommended for engines with 4.125” bore or larger. Maximum competition, comp/modified drag racing, circle track, and heavy duty applications. Dart’s new PRO1 LS 12° 305cc CNC Aluminum rectangle port cylinder head for GM LS7 Compatible small block V8 engines take performance to the next level. This full CNC ported cylinder head offers higher performance and more versatility than factory designs. The 12° based high performance cylinder head has better airflow, more efficient combustion chambers and more user friendly features than production LS castings. The Dart PRO1 305cc cylinder head retains stock valve angles, stock valve locations and stock valve train mounting with dowel holes to make installation easy and durable. Revised .750" finish deck thickness.
Configuration for Use:
1.550" Dual Springs for Solid Roller (Jesel Rocker Bar Machining)