What type of lifters does this camshaft use?

This COMP Cams Xtreme Energy camshaft is designed for hydraulic flat tappet lifters. If your engine was originally equipped with roller lifters from 1985 or newer, this camshaft will not be a direct fit without modifications.

Can this camshaft be used with a nitrous oxide system?

Yes, this camshaft works well in near-stock engines and is compatible with nitrous oxide kits up to 125 horsepower. It's designed to help maximize performance gains when nitrous is introduced.

What specific Chevrolet engine displacements does this camshaft fit?

This camshaft fits Chevrolet Small Block engines ranging from 262 to 400 cubic inches. This includes popular displacements such as the 265, 283, 305, 307, 327, 350, and 400 V8s.

COMP Cams Xtreme Energy Camshaft CS Nx256H-13 | 12-552-4

Name: COMP Cams Camshaft CS Nx256H-13
Brand: COMP Cams
Price: 320.45 USD
Availability: InStock

COMP Cams Camshaft CS Nx256H-13

$320.45

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COMP Cams Xtreme Energy camshaft for Chevy Small Blocks. Boosts torque and throttle response, works with up to 125hp nitrous kits.

Key Features

Fits 1958-2002 Chevrolet Small Block engines from 262 to 400 cubic inches.
Features 212 degrees intake and 222 degrees exhaust duration at .050 lift.
Offers .462 inch intake and .477 inch exhaust valve lift.
Designed for hydraulic flat tappet lifters.
Works well in near-stock engines and supports up to 125 horsepower nitrous kits.
Enhances torque, acceleration, and throttle response.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

This COMP Cams Xtreme Energy camshaft features a 212-degree intake and 222-degree exhaust duration at .050 lift, with a .462 intake and .477 exhaust lift. This design choice helps maximize torque and acceleration, especially in near-stock engines, and it's also compatible with up to a 125 horsepower nitrous oxide kit. The faster intake valve opening increases engine vacuum for better throttle response, while the special intake closing ramps build cylinder pressure for more torque without excessive valvetrain noise. This camshaft is designed for hydraulic flat tappet lifters and works with carbureted or tunable fuel injection setups.

Built for a wide range of Chevrolet Small Block engines from 1958 to 2002, including popular displacements like the 350 and 400 cubic inch V8s, this camshaft is a solid option for those looking to improve performance. It's important to note that this camshaft is not compatible with LT1/LT4 engines or factory roller camshaft blocks from 1985 and newer. If you're unsure about your engine's setup, checking if it has provisions for roller lifters is recommended before installation.