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Pro1 Chevrolet LS Gen III Head – 250.00 CC Port, 68.00 CC Chamber

Your Price: $2,341.62

SKU: 11071143

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Dart Pro1 LS 15 Deg CNC (LS1 Compatible) Gen III Cylinder Heads

Recommended for engines with 4.000 inch bore or larger. Maximum competition, competition modified drag racing, circle track. Over 7,000 RPM. Dart’s PRO1 LS 15 Deg 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.
Heads are sold individually

SKU: 11071143 Categories: , ,

GTIN: 00807051003796



CNC Ported


Combustion Chamber Volume

68.00 CC

Exhaust Valve Diameter

1.600 IN

Intake Valve Diameter

2.080 IN

Port Volume

250.00 CC



Valve Angle

15 DD

Valve Spring Diameter

1.295 IN

Valve Spring Maximum Lift

0.650 IN

Engine Type