What supporting modifications are needed for the COMP Cams XR276HR-10 camshaft?

To maximize the performance of this camshaft, COMP Cams recommends using headers for better exhaust flow, a torque converter with a stall speed of at least 2200 RPM, and low-ratio rear gears. These components help the engine breathe and utilize the camshaft's powerband effectively.

What is the recommended break-in procedure for this camshaft?

Proper break-in is crucial for hydraulic roller camshafts. Always refer to the manufacturer's installation instructions for the specific break-in procedure, which typically involves running the engine at a specific RPM for a set duration immediately after installation.

Does this camshaft come with lifters or other valvetrain components?

This product is for the camshaft only. Lifters, valve springs, retainers, and other valvetrain components are typically sold separately and should be chosen to match the camshaft's specifications for optimal performance and reliability.

COMP Cams XR276HR-10 Hydraulic Roller Camshaft 51-423-11

Name: COMP Cams Camshaft P8 XR276HR-10
Brand: COMP Cams
SKU: comp-cams-comp-cams-camshaft-p8-xr276hr-10-t14-168729
Price: 690.47 USD
Availability: BackOrder

COMP Cams Camshaft P8 XR276HR-10

$690.47

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 XR276HR-10 hydraulic roller camshaft for Pontiac 265-455 V8 engines. Great for street machines needing improved performance.

Key Features

Fits Pontiac 265-455 V8 engines.
Xtreme Energy series hydraulic roller camshaft.
Intake duration is 224 degrees, exhaust duration is 230 degrees.
110-degree lobe separation angle.
Recommended for street machines with headers, low gears, and 2200+ RPM stall torque converter.
Designed for improved performance and responsiveness.

⚠️ 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 wake up your Pontiac V8 for street performance, this COMP Cams XR276HR-10 hydraulic roller camshaft is a solid choice. It's designed for Pontiac 265 to 455 cubic inch engines, offering a noticeable bump in power and torque that you'll feel on the street. This camshaft is a popular upgrade for builders aiming for a strong street machine that still handles daily driving duties, provided the supporting modifications are in place.

This camshaft features a 224-degree intake duration and 230-degree exhaust duration, with a 110-degree lobe separation angle. These specs are chosen to provide a good balance of powerband and drivability for its intended use. To get the most out of this camshaft, COMP Cams recommends pairing it with headers, a torque converter with at least a 2200 RPM stall speed, and low-ratio rear gears. These components work together to ensure the engine can effectively utilize the improved airflow and power delivery that the camshaft provides.

When installing this camshaft, it's important to follow the manufacturer's recommended procedures, especially regarding break-in. COMP Cams is well-known for its performance camshafts, and this Xtreme Energy series part is built to deliver improved performance for your Pontiac V8. It's a significant upgrade that changes the character of your engine, making it more responsive and powerful for your street machine project.