How do I know if my Chevrolet Small Block has a flat tappet or roller camshaft?

The best way to confirm is to remove the intake manifold or the timing cover. Factory roller camshafts were gradually introduced starting in 1985, with earlier engines and some trucks/SUVs retaining flat tappet designs longer. This kit is only compatible with flat tappet engines.

What kind of idle can I expect with this camshaft?

This camshaft is designed for performance and will produce a rough idle. This is a normal characteristic for camshafts with these specifications and indicates it's optimized for increased airflow and power.

Does this kit come with everything needed for installation?

Yes, the SK-Kit includes the camshaft, lifters, a timing chain set, assembly lube for proper break-in, and decals. You will need to ensure you have basic tools and follow the included instructions for installation.

COMP Cams CS Nx274H-13 Hydraulic Flat Tappet Camshaft Kit SK

Name: COMP Cams Camshaft Kit CS Nx274H-13
Brand: COMP Cams
SKU: comp-cams-comp-cams-camshaft-kit-cs-nx274h-13-t14-4397332
Price: 463.95 USD
Availability: BackOrder

COMP Cams Camshaft Kit CS Nx274H-13

$463.95

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

COMP Cams Hydraulic Flat Tappet Camshaft Kit for Chevrolet Small Block Gen 1. Boosts power for street/strip use.

Key Features

Fits Chevrolet Gen 1 Small Block engines, including displacements from 262 to 400 cubic inches.
Hydraulic flat tappet camshaft with 230 degrees intake and 244 degrees exhaust duration.
Designed for street/strip use, capable of adding 125+ horsepower.
Suitable for medium blower applications with a 2500+ RPM stall converter.
Kit includes camshaft, lifters, timing chain set, assembly lube, and decals.
Rough idle is expected due to the camshaft's performance profile.

⚠️ 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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Will this fit your vehicle?

Product Details

This COMP Cams camshaft kit is built around a hydraulic flat tappet camshaft with intake and exhaust duration specs of 230 and 244 degrees, respectively. This is a popular choice for street/strip applications where you're looking to add significant horsepower, often seeing gains of 125+ hp, or for setups with a medium-sized blower and a 2500+ RPM stall converter. Expect a rough idle with this camshaft, which is characteristic of its aggressive performance profile.

The SK-Kit includes everything you need to get this camshaft installed and running: the camshaft itself, a set of lifters, a complete timing chain set, assembly lube to ensure proper break-in, and decals. This kit is designed for Chevrolet Gen 1 Small Block engines, covering a wide range of displacements from 262 to 400 cubic inches. It's important to verify your engine uses a flat tappet valvetrain, as many later model Small Blocks (from 1985 and newer) transitioned to factory roller camshafts, which are not compatible with this kit. Removing the intake manifold or timing cover is the best way to confirm your engine's configuration.

This kit is a solid option for enthusiasts looking to wake up their classic Chevrolet V8. While it’s designed for performance, it’s crucial to note that it is not CARB approved and cannot be shipped to California. Ensure your engine is a flat tappet design before purchasing, as this kit is specifically for those applications.