COMP Cams Thumpr 235/249 Hydraulic Flat Camshaft for Chevrolet Big Block 396-454, Part Number 11-601-4

The COMP Cams Thumpr 235/249 hydraulic flat camshaft is designed for Chevrolet Big Block engines ranging from 396 to 454 cubic inches. This high-performance camshaft is ideal for street and strip applications, delivering a robust and aggressive sound with a rough idle that enthusiasts seek. It requires a minimum of 9:1 compression ratio and is best paired with a torque converter with a stall speed of 2500 RPM or higher, along with upgraded intake systems, gears, and headers to maximize performance.
Constructed for Chevy GEN IV Big Block engines originally equipped with flat tappet camshafts, the Thumpr 235/249 offers significant power gains by optimizing valve timing for increased airflow and combustion efficiency. Its design supports both street and strip environments, enabling improved acceleration and throttle response while maintaining drivability. This camshaft is engineered for enthusiasts who want a bold sound and noticeable power increase without sacrificing reliability.
The COMP Cams CB 287T H-107 MT Thu features durable construction and is compatible with various aftermarket components. It requires acknowledgment of carburetor compatibility and is not carburetor approved, emphasizing its focus on performance tuning. The camshaft's specifications and profile make it suitable for custom builds aiming for high performance and a commanding exhaust note. Proper installation and matching with supporting components will ensure optimal results, making it an excellent choice for performance-oriented Chevrolet Big Block rebuilds and upgrades.

Features:

• High-performance hydraulic flat camshaft designed for Chevrolet Big Block engines 396-454

• Optimized for street and strip applications with aggressive sound and rough idle

• Requires a minimum of 9:1 compression ratio for optimal performance

• Supports 2500+ RPM stall converters, intake, gears, and headers for maximum output

• Designed for Chevrolet GEN IV Big Block engines originally equipped with flat tappet cams

• Enhances airflow and combustion efficiency for increased power and throttle response

• Durable construction suitable for high-performance engine builds

• Not carburetor approved, requires acknowledgment of compatibility