What specific components are included in this COMP Cams camshaft kit?

This kit includes the COMP Cams CS X4 270H-11 camshaft, a set of lifters, a complete timing chain set, assembly lube for installation, and COMP Cams decals. It's a comprehensive package for upgrading your engine's camshaft.

How do I know if my Chevrolet Small Block engine is compatible with this flat tappet camshaft kit?

This kit is designed for engines that use a flat tappet camshaft. Many Chevrolet Small Blocks from 1985 and earlier used flat tappets, but factory roller camshafts were gradually introduced. You may need to remove the intake manifold or timing cover to visually confirm if your engine has a flat tappet or roller camshaft system.

What kind of performance improvements can I expect from this camshaft kit?

This camshaft is designed to deliver strong mid-range power and improved throttle response. It's particularly effective when paired with other modifications like headers and a change in rear axle gearing, and it's recommended for use with torque converters rated for 2200 RPM or higher.

COMP Cams Camshaft Kit CS X4 270H-11 SK12-243-3

Name: COMP Cams Camshaft Kit CS X4 270H-11
Brand: COMP Cams
Price: 425.54 USD
Availability: InStock

COMP Cams Camshaft Kit CS X4 270H-11

$425.54

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 CS X4 270H-11 camshaft kit for Chevrolet Small Block Gen 1 engines. Improves mid-range power and throttle response.

Key Features

Fits 106+ vehicle make/model combinations.
Kit includes camshaft, lifters, timing chain set, assembly lube, and decals.
Designed for Chevrolet Gen 1 Small Block engines.
Provides strong mid-range power and improved throttle response.
Camshaft specifications: 226 degrees intake duration, 234 degrees exhaust duration, 111-degree lobe separation angle.
Works well with headers, aftermarket gears, and 2200+ RPM stall speed torque converters.

⚠️ 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, part number SK12-243-3, is designed for Chevrolet Gen 1 Small Block engines. When you open the box, you'll find the camshaft itself, a set of lifters, a complete timing chain set, assembly lube to help with installation, and decals. This kit is intended to give your engine a strong mid-range pull and improved throttle response, especially when paired with headers and a gear change. It's a popular choice for builds that see a lot of street driving and want a noticeable bump in performance.

The Xtreme 4x4 270H-11 camshaft features a 226-degree intake and 234-degree exhaust duration with a 111-degree lobe separation angle, making it well-suited for engines that will be used in a variety of conditions. This kit is designed for engines that use a flat tappet camshaft system, which were common in many Chevrolet Small Blocks up through the mid-1990s, particularly in trucks and SUVs. It's important to verify your engine's setup, as factory roller camshafts became more common in passenger cars and performance models earlier. This kit is not compatible with LT1, LT4, or LS-based engines.

For optimal performance, this camshaft kit works best with headers and a rear gear ratio change, and it's recommended for engines with a 2200 RPM or higher stall speed torque converter. If you're looking to wake up your classic Chevrolet small block with a solid improvement in the mid-range and a more responsive feel, this COMP Cams kit is a well-built option.