SKU: COM11-601-8
UPC: 036584150909
MPN: 11-601-8
The COMP CAMS BBC Thumpr Series Cam - CB291T HR-107 is a high-performance hydraulic roller camshaft engineered specifically for Big Block Chevy engines. As part of the renowned Mutha' Thumpr line, this component is designed to deliver a hard-hitting, aggressive exhaust note that enthusiasts demand, while maintaining the reliability and low-friction advantages of a hydraulic roller setup. By utilizing a narrow lobe separation and early exhaust valve opening, this camshaft provides that iconic street-machine sound without compromising the mechanical integrity of your valvetrain.
Technically optimized for an operating range between 2000 and 5800 RPM, the COMP CAMS BBC Thumpr Series Cam - CB291T HR-107 excels in the mid-range where street performance is most critical. It features a gross valve lift of 0.558 inches on the intake and 0.542 inches on the exhaust side, paired with a duration of 291 and 311 respectively. These specifications ensure significant airflow through the cylinder heads, allowing high-displacement Big Block engines to breathe efficiently while producing substantial torque and horsepower gains over stock profiles.
Builders looking for detailed specifications or a technical review of the Mutha' Thumpr series will find that the 107-degree lobe separation angle is the key to its unique performance characteristics. This tighter separation increases valve overlap, which is the primary driver behind the camshaft's signature idle quality. When you buy this camshaft for your Big Block Chevy project, you are investing in a precision-machined component that balances the aesthetic of a race-ready idle with the functional requirements of a high-performance street engine.
Installation of the COMP CAMS BBC Thumpr Series Cam - CB291T HR-107 typically requires the use of compatible hydraulic roller lifters and valve springs rated for the increased lift. For those seeking the ultimate combination of sound and power, this camshaft remains a top choice for restorers and hot rodders alike. Ensure your torque converter and rear gear ratios are matched to the 2000+ RPM power band to maximize the drivability and performance potential of this specialized Big Block Chevy camshaft.
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