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

You will need to remove the intake manifold or timing cover to inspect the camshaft's lifters. Many engines from the mid-1980s onward transitioned to factory roller camshafts, while earlier engines and some later trucks and SUVs retained flat tappet designs. Confirming this is essential before installing this camshaft.

What kind of supporting modifications are recommended for this camshaft?

For optimal performance, this camshaft is recommended for use with a good aftermarket intake manifold, headers, and a torque converter with a stall speed of 3300 RPM or higher. These components help the engine breathe better and utilize the camshaft's increased powerband effectively.

What is the break-in procedure for this camshaft?

It is critical to follow the manufacturer's specific break-in procedure for hydraulic flat tappet camshafts. This typically involves running the engine at 2000-2500 RPM for about 20 minutes immediately after installation to properly lubricate and seat the lifters, preventing premature wear.

COMP Cams Camshaft CS XE294H-10 12-254-3

Name: COMP Cams Camshaft CS XE294H-10
Brand: COMP Cams
SKU: comp-cams-comp-cams-camshaft-cs-xe294h-10-t14-4390158
Price: 286.94 USD
Availability: BackOrder

COMP Cams Camshaft CS XE294H-10

$286.94

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 CS XE294H-10. Hydraulic flat tappet for Chevy Small Block, offering improved torque and response.

Key Features

Fits Chevrolet Gen 1 Small Block engines.
Hydraulic flat tappet design for improved valve train operation.
Intake duration is 250 degrees at .050 lift, exhaust duration is 256 degrees at .050 lift.
Designed for increased torque, vacuum, and throttle response.
Aims for quiet valve train operation and durability for daily driven vehicles.
Requires supporting modifications like a good intake, headers, and 3300+ stall converter for optimal performance.

⚠️ 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 250-degree intake and 256-degree exhaust duration at .050 lift, designed for Chevrolet Small Block engines. It's a hydraulic flat tappet camshaft that bridges the gap between street cams and race-only grinds, aiming for strong torque and improved response without sacrificing too much daily drivability. This camshaft fits a wide range of Chevrolet Small Block Gen 1 engines, including popular displacements like the 350, 305, and 400, but it's important to confirm your engine uses a flat tappet setup, as many later models switched to factory roller cams.

The XE294H-10 is built to provide a noticeable increase in torque and power, especially when paired with a good intake manifold, headers, and appropriate gearing. While it aims for a smooth idle and quiet valve train operation, it's considered a pro-street or bracket racing camshaft. This means it performs best when supported by a 3300+ stall torque converter and other supporting modifications to take full advantage of its performance potential. COMP Cams is known for well-built valvetrain components, and this camshaft is designed for the durability needed in vehicles that see regular use.

When installing this camshaft, it's crucial to follow the manufacturer's break-in procedure to ensure proper lubrication and seating of the flat tappets. If you're unsure whether your engine has a factory roller or flat tappet setup, it's best to remove the intake manifold or timing cover to verify before purchasing. This camshaft is not CARB approved and cannot be shipped to California.