How do I know if my engine has a flat tappet or roller camshaft?

You'll need to remove the intake manifold or timing cover to visually inspect the camshaft. Roller camshafts have a distinct roller follower that rides on the cam lobe, while flat tappet camshafts have a simple, flat-bottomed lobe that slides against the lifter.

What is included in the COMP Cams SK-KIT?

The SK-KIT, or Small Kit, includes the camshaft, lifters, a timing chain set, assembly lube, and decals. This provides the essential components for a camshaft replacement job.

Will this camshaft kit fit my 1990 Chevrolet 350 truck engine?

This kit fits many Chevrolet Gen 1 Small Block engines, including 350s. However, you must verify if your specific 1990 truck engine uses a flat tappet camshaft, as this kit is not compatible with factory roller camshafts that began appearing in the mid-80s.

COMP Cams Camshaft Kit SK12-234-2 for Chevy Small Block

Name: COMP Cams Camshaft Kit CS XE256H-10
Brand: COMP Cams
SKU: comp-cams-comp-cams-camshaft-kit-cs-xe256h-10-t14-4397274
Price: 402.66 USD
Availability: BackOrder

COMP Cams Camshaft Kit CS XE256H-10

$402.66

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 camshaft kit for Chevy Small Block Gen 1 engines. Boosts low-end and mid-range torque with a good idle.

Key Features

Fits 1955-1996 Chevrolet Gen 1 Small Block engines with flat tappet camshafts.
Includes camshaft, lifters, timing chain set, assembly lube, and decals.
Xtreme Energy XE256H camshaft offers 212 degrees intake and 218 degrees exhaust duration.
Designed for strong torque through the low end and mid-range.
Provides a good, manageable idle.
COMP Cams is a popular brand for performance engine components.

⚠️ 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

If you're looking to get more grunt out of your Chevrolet Small Block Gen 1 engine, this COMP Cams Xtreme Energy camshaft kit is a solid option. It's designed to give you strong torque through the low end and mid-range, which makes a noticeable difference when you're accelerating from a stop or cruising around town. Plus, it's set up to provide a good, manageable idle, so you won't have to worry about it running rough.

This kit includes the camshaft itself, a set of lifters, and a timing chain set, so you have the core components needed for the swap. COMP Cams is well-known for making parts that perform, and this Xtreme Energy series is popular for its ability to improve an engine's powerband without sacrificing drivability. The 212/218 duration on intake and exhaust means it's a step up from stock, offering improved breathing for your engine.

This kit fits a wide range of Chevrolet Gen 1 Small Block engines, including popular displacements like the 350, 327, and 283. It's important to confirm your engine uses a flat tappet camshaft, as this kit is not compatible with factory roller camshafts found in some later model engines. You'll want to remove the intake manifold or timing cover to be sure before ordering. It also comes with assembly lube and decals to help with the installation process.