COMP Cams Cam/Lifter Kit CS 299T HR-107

When you're looking to really wake up your Small Block Chevy, this COMP Cams Big Mutha' Thumpr hydraulic roller cam and lifter kit is a popular choice. What you get in this box is everything you need to get started: the camshaft itself, a set of lifters, assembly lube to get everything properly coated from the first start, and decals to show off your new setup. This kit is designed for '87 and later GEN 1 Chevrolet 305 and 350 small block engines that came with factory roller camshafts, excluding LT-1 and LS1 variants. It's a multi-fit application that works across a wide range of vehicles, from Chevrolet Camaros and Corvettes to Buick Roadmasters and Cadillac Broughams.

This CS 299T HR-107 camshaft is built for street and strip use, meaning it's intended for vehicles that see regular driving but are also taken to the track. To make this cam perform its best, you'll want to ensure your engine has at least 9.5:1 compression, a torque converter with a stall speed of 2800 RPM or higher, and that you're running an upgraded intake, rear gears, and headers. Expect a very rough idle with this setup – it's part of the aggressive nature of this cam profile, letting everyone know you mean business. The hydraulic roller design means it's more efficient and durable than older flat-tappet designs, allowing for higher lift and duration without excessive wear.

Installing a camshaft like this is a significant job, often involving removing the engine or at least the front timing cover and cylinder heads. It's crucial to follow the included instructions carefully, especially regarding the initial startup procedure with the assembly lube to ensure proper oiling of the new components. Because this is a performance camshaft, it's not CARB approved and cannot be shipped to California. Make sure your vehicle's emissions system is compatible with this type of modification.