COMP Cams CB XR300H-R10 Camshaft Kit for Chevrolet Big Block Engines

The COMP Cams CB XR300H-R10 Camshaft Kit is designed for high-performance Chevrolet GEN IV 396-454 big block engines originally equipped with flat tappet camshafts. This complete kit includes a premium camshaft, lifters, valve springs, retainers, valve locks, valve stem seals, and a timing chain set, providing a comprehensive upgrade for enthusiasts seeking increased horsepower and torque. The kit is ideal for pro street and bracket racing applications with 10:1+ compression ratios, stall converters over 3500 RPM, and good intake and header setups.

Designed for durability and high performance, this kit ensures smooth operation and reliable power delivery in demanding racing environments. Assembly lubrication is included for flat tappet applications, simplifying installation and reducing wear during startup. The components are engineered to meet or exceed OEM standards, enabling optimal engine performance and longevity.

Since this kit is not carb approved and requires carb acknowledgment, it is suitable for specialized racing setups where emissions compliance is not mandated. The kit’s construction adheres to Prop 65 regulations, ensuring safety and compliance in various regions. Whether upgrading an existing engine or building a new race engine, the COMP Cams CB XR300H-R10 kit provides the quality and performance needed for competitive motorsports.

Features:

• Complete camshaft kit for Chevrolet Big Block engines

• Includes camshaft, lifters, valve springs, retainers, and timing chain

• Designed for pro street and bracket racing applications

• Suitable for engines with 10:1+ compression and 3500+ RPM stall converters

• Assembly lube included for flat tappet applications

• Engineered for durability and high performance

• Requires carb acknowledgment, not CARB approved

• Complies with Prop 65 safety regulations