COMP Cams Camshaft Kit CS 283T HR-7 T T

This COMP Cams Thumpr camshaft kit is built around a hydraulic roller camshaft featuring a 227/241 degree intake/exhaust duration split. This specific grind is designed for high-performance street applications and is known for its aggressive, thumping idle sound. While it can work with a stock torque converter, it performs best when paired with a converter rated for 2000 RPM or higher, along with appropriate rear-end gearing to take full advantage of its powerband.

This K-Kit is a comprehensive package, meaning it includes everything you need to swap out your old camshaft and related components. You'll find the camshaft itself, a set of hydraulic roller lifters, matching valve springs, retainers, valve locks, and valve stem seals. To ensure proper timing and installation, the kit also comes with a new timing chain set and assembly lube. COMP Cams includes decals and instructions to guide you through the process. This kit is intended for Chevrolet Small Block engines, specifically GEN 1 versions like the 262, 283, 305, 327, 350, and 400 cubic inch displacements. It's important to verify your engine is a flat tappet design, as this kit is not compatible with factory roller camshaft blocks from 1985 and newer, nor is it for LS-based engines.

For optimal performance and longevity, it's crucial to confirm your engine's configuration. Some early 265 cubic inch engines from 1955-1957 may require a specific oiling groove on the fifth cam journal. If you're unsure about your block's factory setup, removing the intake manifold or timing cover is the best way to determine if it's a roller or flat tappet design. This camshaft kit is a significant upgrade for enthusiasts looking to achieve a noticeable performance increase and a distinctive idle note on their compatible Chevrolet Small Block.