Comp Cams GM LS Series LSR Cathedral Port Hydraulic Roller Camshaft 273LRHR12 with 0.610/0.617 Inch Lift and 273/281 Duration

The Comp Cams GM LS Series LSR Cathedral Port hydraulic roller camshaft model 273LRHR12 is engineered for high-performance applications, offering a balanced combination of lift and duration. Designed specifically for GM LS engines, this camshaft features a lift of 0.610 inch on the intake side and 0.617 inch on the exhaust, providing enhanced airflow for improved power output. The duration of 273 degrees on the intake and 281 degrees on the exhaust ensures strong mid-range torque and high RPM capability, making it suitable for street and performance builds. With a 112-degree LSA, this camshaft promotes a good balance of idle quality and power delivery, supporting engine efficiency and responsiveness.

Features:

• Designed for GM LS-Series engines with cathedral port cylinder heads

• Hydraulic roller design for durability and reduced maintenance

• Lift: 0.610 inch intake, 0.617 inch exhaust for increased airflow

• Duration: 273 degrees intake, 281 degrees exhaust for broad power band

• Lobe Separation Angle: 112 degrees for balanced performance

• RPM Range: 1,700 to 6,800 RPM suitable for street and performance use

• Not air restricted or truck freight only, suitable for various applications