COMP Cams Camshaft CS Xt256H-12

If you're looking to get more out of your Chevrolet Small Block engine, especially in a street application that sees some boost, this COMP Cams Xtreme Turbo camshaft is a solid option. It's designed for higher RPM use and works well with 8-16 lbs. of boost, making it a popular choice for modified street machines. This camshaft is built for hydraulic flat tappet lifters, which is common in many Gen 1 Small Block Chevy engines from 1958 through the early 1980s, and even some later models depending on the specific truck or car. It covers a wide range of displacements from 262 to 400 cubic inches.

This camshaft features a 212 degrees of intake and 212 degrees of exhaust duration at .050 lift, providing a good balance for street performance and drivability. The Xtreme Turbo series is known for its well-built construction and ability to handle the demands of boosted applications. It's important to check your specific engine block to confirm if it's a factory roller or flat tappet design, as this camshaft is intended for flat tappet applications. If your engine was built from 1985 and newer, especially in trucks and SUVs, you might have a roller setup, and you'll need to verify before installation.

For those building a performance street engine with forced induction, this camshaft offers an improved powerband that reaches higher into the RPM range. It's a key component for unlocking more power when you're running a turbocharger or supercharger on your classic Chevy V8.