Take your LS build to the next level with this pair of Dart Pro1 LS 15 Degree Assembled Cylinder Heads (DRT11030153). Built for serious street and race applications, these high-performance aluminum heads deliver exceptional airflow, durability, and real horsepower potential for GM LS-based engines.
Each head features a 280cc intake runner and 68cc combustion chamber, making them ideal for high-horsepower builds. These come fully assembled and ready to install with premium valvetrain components.
Brand new in the box. Multiple sets available and ready to ship.
FREE shipping anywhere in the lower 48 states—no added fees.
Key Features
Sold as a complete pair (2 cylinder heads)
High-flow 280cc intake runners for maximum airflow and horsepower
68cc combustion chambers ideal for performance LS builds
Fully assembled with valves, springs, retainers, and seals
Compatible with hydraulic roller camshafts up to .650" lift
Premium aluminum construction for strength and reduced weight
Designed for GM LS-series engines
Specifications (Per Head)
Part Number: DRT11030153
Product Line: Dart Pro1 LS 15 Degree
Configuration: Assembled
Material: Aluminum
Combustion Chamber Volume: 68cc
Intake Runner Volume: 280cc
Exhaust Runner Volume: 102cc
Intake Valve Size: 2.165"
Exhaust Valve Size: 1.600"
Max Valve Lift: .650"
Valve Springs: Dual, 1.295" Diameter
Valve Retainers: Titanium
Valve Guide Material: Manganese Bronze
Valve Seat Material: Ductile Iron
Valve Angle: 15° Intake / Exhaust
Camshaft Compatibility: Hydraulic Roller
Port Shape: Rectangle Intake / Square Exhaust
Finish: Natural Aluminum
Fitment
Designed for GM LS-series engines. Ideal for high-performance street, strip, and racing applications requiring increased airflow and horsepower.
