COMP Cams Nitrided Camshaft CS 295T H7

This is the COMP Cams Nitrided Camshaft CS 295T H7, part number 12-602-20. It's built for Chevrolet Small Block engines, specifically the GEN 1 variety like the 262, 283, 305, 350, and 400 cubic inch displacements. This camshaft is designed to give your engine a noticeable, aggressive idle sound and also aims to improve horsepower and broaden the torque curve. It's a popular choice for muscle cars and street rods where that classic rumble and extra punch are desired.

The Thumpr series camshafts, like this one, use an early intake valve opening and a longer exhaust duration. This creates a significant amount of valve overlap, which is what contributes to that distinctive, rough race car idle. To make sure your drivetrain can keep up with the engine's new powerband, this camshaft typically requires an aftermarket torque converter with a higher stall speed (2800 RPM or more) and lower gear ratios in your rear end. You'll also likely see reduced vacuum at idle, so a vacuum canister, pump, or hydroboost system is usually needed if you have power brakes.

This camshaft features a nitrided finish, which adds a layer of hardness to the surface. This helps improve wear resistance, especially important for flat tappet designs. Keep in mind that this camshaft is intended for street/strip use and requires a minimum of 9.5:1 compression, along with supporting modifications like an upgraded intake, headers, and a higher stall torque converter to perform as intended. It's important to verify your specific engine is a flat tappet design and not a factory roller camshaft, as this camshaft is not compatible with those.