COMP 11-422-8 XTREME ENERGY 218/224 Retro Fit Camshaft with HP Link Bar Lifters | LIFT: .510"/.510" | FITS: Chevrolet BBC Big Block 396 402 427 454 | Great Mid-Range Torque

This Competition Cams 11-422-8 hydraulic roller camshaft and Redline Performance link-bar lifter set is engineered to deliver strong, reliable, street-friendly performance for Chevy 396–454 big block engines. Designed with the proven Xtreme Energy lobe family, this camshaft improves airflow, torque and throttle response while maintaining the drivability required for street use. With .510"/.510" lift, 270°/276° advertised duration, 218°/224° @ .050, and a 110° lobe separation angle, the 11-422-8 dramatically increases how efficiently your big block breathes. The .510" lift opens the valves deeper into the cylinder head’s high-velocity flow region, allowing the engine to take in more air and fuel while improving exhaust scavenging. You feel this immediately as stronger mid-range torque, cleaner throttle transitions and sharper acceleration. The 218°/224° duration @ .050 keeps valves open longer during peak airflow, building higher cylinder pressure and producing the kind of pull and throttle response big block drivers expect. The 110° LSA adds a mild performance lope while optimizing mid-range power without sacrificing idle quality or vacuum. It's the ideal balance between sound, drivability and performance. Matched Redline Performance link-bar hydraulic roller lifters ensure smooth, stable roller action and excellent lubrication control, supporting the cam’s lift and duration demands. This combination provides the reliability and consistent performance needed in street-driven engines running performance heads, headers, dual exhaust, upgraded induction and proper tuning. Whether you're upgrading a Chevelle, Camaro, Nova, Corvette, C10 or street rod, this cam and lifter kit delivers stronger torque, better acceleration, more character and a sharper performance feel—without forcing you into extreme modifications. If you want a no-compromise street cam that wakes up a big block Chevy, the Competition Cams 11-422-8 package is the perfect choice.

• THIS IS A COMP CAM & REDLINE USA CAM KIT ASSEMBLED BY OUR EXPERT ENGINEERS TO CREATE THE HIGHEST QUALITY CAMSHAFT KIT AT AN AFFORDABLE PRICE. EVERY PART IN THIS KIT HAS A HIGH-PERFORMANCE SPEC RATING AND IS GUARANTEED TO BE OF THE HIGHEST OF QUALITY AND PERFORMANCE.
• COMPETITION CAMS 11-422-8 SPECS FOR REAL BIG BLOCK POWER – Hydraulic roller grind featuring 270°/276° advertised duration, 218°/224° @ .050 and .510"/.510" lift on a 110° LSA. This proven Xtreme Energy profile increases valve motion, improves breathing and produces crisp throttle response in 396–454 big block builds.
• REDLINE PERFORMANCE LINK-BAR HYDRAULIC ROLLER LIFTERS INCLUDED – Heavy-duty link-bar lifters engineered for smooth tracking on the roller lobes, reliable lubrication and long-term durability under higher lift and duration. Perfect match for the Xtreme Energy cam’s aggressive ramp rates.
• .510"/.510" LIFT PUTS THE VALVES DEEP INTO THE HIGH-FLOW ZONE – The .510" lift height opens the valves far enough for the cylinder heads to operate efficiently, dramatically improving airflow and fuel mixture filling. The result is stronger mid-range torque, a smoother RPM climb and a noticeable improvement in low-speed and mid-range acceleration.
• 218°/224° @ .050 DURATION FOR REAL STREET PERFORMANCE – These duration numbers keep the valves open during the engine’s most efficient airflow window, improving cylinder fill and increasing dynamic cylinder pressure. This translates into harder pull out of corners, stronger passing power and snappier throttle response across typical street RPMs.
• 110° LSA BALANCES POWER, SOUND & STREET MANNERS – The slightly tighter lobe separation angle sharpens mid-range performance and adds a subtle performance lope at idle while still retaining enough vacuum for power brakes. Ideal for muscle car drivers who want power and drivability.
• ONE OF THE BEST “ALL-AROUND STREET CAMS” FOR BIG BLOCK CHEVY – The 11-422-8 is known for giving big blocks a stronger personality without sacrificing usability. It adds torque, cleans up airflow, increases responsiveness, and makes the engine feel alive without requiring extreme compression or race-level modifications.