COMP Cams Thumpr 227/241 Hydraulic Roller Cam - Oldsmobile 260-455

This COMP Cams Thumpr camshaft kit includes the camshaft itself, designed to give your Oldsmobile V8 engine a distinctive choppy, thumping idle. It's a hydraulic roller camshaft, meaning it uses roller lifters to reduce friction and wear compared to flat tappet designs. This specific grind, the 227/241, is intended for performance street applications and is engineered to work with stock torque converters, though it really shines with a 2000+ RPM stall converter and appropriate gearing to take full advantage of its powerband.

When you install this Thumpr cam, you're looking for a noticeable change in your engine's character. The 'Thumpr' name isn't just for show; it signifies a more aggressive idle sound that many enthusiasts appreciate. While it's designed to be streetable with a stock converter, pairing it with a higher stall converter and suitable rear-end gears will unlock its full potential, allowing for improved throttle response and overall performance. This camshaft is a solid choice if you want to give your Oldsmobile engine a more pronounced, performance-oriented personality without going to extreme measures.

This camshaft is not approved by the California Air Resources Board (CARB) and cannot be shipped to California. Please ensure you check local emissions regulations before purchasing and installing this part on your vehicle.