What is the primary performance goal of this camshaft?

This COMP Cams camshaft is designed for street and strip use, with a focus on improving high-RPM power. It's intended to give your LS engine a noticeable boost when it's operating at higher engine speeds.

What other parts or modifications are typically needed when installing this camshaft?

Installing this camshaft often requires an engine programmer to properly tune the fuel and ignition systems for optimal performance and to avoid issues. It's also noted to pair well with higher rocker arm ratios for enhanced results.

Does this camshaft come with any hardware or gaskets?

This product listing is for the camshaft itself. It is recommended to consult the manufacturer's installation guide or contact COMP Cams directly to confirm what additional hardware or gaskets are included or recommended for installation.

COMP Cams LS1 XR273HR-12 Hydraulic Roller Camshaft 54-416-11

Name: COMP Cams Camshaft LS1 XR273HR-12
Brand: COMP Cams
SKU: comp-cams-comp-cams-camshaft-ls1-xr273hr-12-t14-4392837
Price: 555.48 USD
Availability: BackOrder

COMP Cams Camshaft LS1 XR273HR-12

$555.48

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 XR273HR-12 hydraulic roller camshaft for GM LS GEN III/IV engines. This street/strip cam is designed for high RPM power.

Key Features

Fits 5.7L, 6.0L, 6.2L, and 7.0L LS1, LS2, LS3, LS4, LS6, and LS7 engines, plus SUV and Truck variants.
Hydraulic roller camshaft designed for street and strip applications.
Features a 220 intake and 224 exhaust duration at .050 lift.
Has a 112-degree lobe separation angle.
Designed to perform well at higher RPMs.
Works best with higher rocker arm ratios.

⚠️ 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

What you get with this COMP Cams camshaft is a hydraulic roller grind specifically designed for GM LS GEN III and GEN IV engines. This is the XR273HR-12 model, featuring a 220 intake and 224 exhaust duration at .050 lift, with a 112-degree lobe separation angle. It's built for street and strip use, aiming to give you a noticeable boost in power when the engine is spinning at higher RPMs.

This camshaft is a popular choice for LS engine builds where the goal is to improve performance, especially in the upper RPM range. It's known to pair well with higher rocker arm ratios, which can further enhance its performance characteristics. Keep in mind that installing a camshaft like this often requires a compatible engine programmer to properly tune the engine's fuel and ignition systems for optimal operation and to avoid issues like check engine lights. It's designed to fit a wide range of GM LS-based vehicles, including models like the Chevrolet Camaro, Corvette, and Silverado trucks, as well as Cadillac CTS and Buick LaCrosse, among many others.

When you're looking to get more out of your LS engine, especially for applications that see a lot of time at higher engine speeds, this camshaft is a solid option. It's a well-built component from COMP Cams, a well-known name in performance engine parts. Remember that this camshaft is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and tuning requirements.