What is the benefit of the nitrided surface on this camshaft?

The nitriding process hardens the surface of the camshaft. This helps to increase its resistance to wear, which is important for the longevity of the camshaft and the valvetrain components it interacts with.

What kind of intake and exhaust setup does this camshaft prefer?

This camshaft is noted to prefer an improved intake manifold and headers. These components help the engine breathe more freely, allowing the camshaft's specifications to translate into better performance.

Is this camshaft compatible with roller lifters?

No, this camshaft is specifically designed for hydraulic flat tappet valvetrains. It is intended for Chevrolet Big Block engines that originally came with flat tappet camshafts.

COMP Cams Nitrided Camshaft 11-240-20

Name: COMP Cams Nitrided Camshaft CB XM 278H-
Brand: COMP Cams
Price: 444.02 USD
Availability: InStock

COMP Cams Nitrided Camshaft CB XM 278H-

$444.02

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COMP Cams Nitrided Camshaft 11-240-20 for Chevrolet Big Block engines. Improves intake and header performance.

Key Features

Fits 106+ vehicle make/model combinations.
COMP Cams Nitrided Camshaft CB XM 278H-XM 234/244 HFTBBC.
Designed for Chevrolet Big Block 396-454 engines originally equipped with flat tappet camshafts.
Features a 234/244 degree duration at .050 lift and a 114-degree lobe separation angle.
Nitrided surface hardening improves wear resistance.
Works well with improved intake manifolds and headers.

⚠️ 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

COMP Cams is well-known for making performance engine parts, and this Nitrided Camshaft CB XM 278H-XM is built for Chevrolet Big Block engines originally equipped with flat tappet camshafts. This camshaft is designed to work with improved intake setups and headers, making it a solid choice for those looking to get more out of their engine. The nitriding process hardens the surface, which helps with wear resistance.

This camshaft features a 234/244 degree duration at .050 lift and a 114-degree lobe separation angle. It's intended for use with a hydraulic flat tappet valvetrain. The 'Xtreme Marine' designation suggests it's built for demanding applications, and the 'Jet w/ A impeller' note implies it's suitable for marine use with specific jet drives, though it also performs well in automotive applications when paired with better breathing components like an improved intake manifold and headers.

This camshaft fits a wide range of Chevrolet vehicles, including models like the 1967-1975 Chevrolet Bel Air, 1967-1972 Chevrolet Biscayne, and 1973-1974 Chevrolet Blazer, among many others. It's a good option if you're rebuilding the top end of your engine and want a noticeable improvement in performance, especially when combined with other breathing modifications.