COMP Cams Camshaft for Gen III LS 4.8L/5.3L/6.0L Truck

This COMP Cams Stage 1 Thumpr camshaft is built with a 218/229 degree intake/exhaust duration and a 110-degree lobe separation angle. This specific grind is designed to give your Gen III LS engine a noticeable, aggressive idle sound while also improving power, making it a popular choice for performance truck applications. It's a budget-friendly option that doesn't require upgraded valve springs, simplifying the installation process.

The Thumpr series is well-known for its distinctive exhaust note, and this Stage 1 version offers a good balance of sound and performance for everyday driving and occasional spirited use. It's engineered to work with a wide range of Gen III LS engines found in trucks and SUVs, including popular models like the Chevrolet Silverado, GMC Sierra, and Cadillac Escalade. The camshaft profile is optimized for hydraulic roller lifters, which are standard in these LS engines.

When installing this camshaft, it's important to follow the manufacturer's recommended procedures. While it's a No Springs Required (NSR) design, ensuring your valve springs are in good condition is always a good idea for optimal performance and longevity. This camshaft is a solid choice for those looking to add a unique sound and a noticeable bump in power to their LS-powered vehicle without a complex setup.