COMP Cams Camshaft Kit CB XR258HR-10

This COMP Cams Xtreme Energy camshaft kit is built around a hydraulic roller camshaft with intake and exhaust duration specs of 206 and 212 degrees, respectively. This updated design replaces older flat tappet camshafts, offering improved valvetrain efficiency and performance for Chevrolet Big Block engines like the 396, 427, and 454 cubic inch V8s. It's designed to work with Chevrolet GEN IV Big Block engines that originally came with flat tappet camshafts, providing a significant upgrade for a wide range of vehicles including the Chevrolet Impala, Chevelle, and C10 Pickup models from the late 60s through the mid-70s.

The SK-KIT includes everything you need to get this hydraulic roller camshaft installed and running smoothly. You'll find the camshaft itself, a set of high-performance lifters designed for roller applications, a new timing chain set to ensure accurate valve timing, assembly lube to protect components during initial startup, and even decals and instructions to guide you through the process. This comprehensive package means you won't be scrambling for essential parts, making the installation more straightforward. The hydraulic roller design generally offers better durability and requires less maintenance than traditional flat tappet systems, while also allowing for more aggressive cam profiles that can lead to improved horsepower and torque across the RPM range.

When considering an upgrade like this, it's important to note that this kit is intended for engines originally equipped with flat tappet camshafts. While it fits a broad spectrum of Chevrolet vehicles from 1967 through 1986, always verify fitment for your specific application. This kit is a substantial upgrade for those looking to enhance the performance and reliability of their Big Block Chevrolet engine.