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The Chevy 454 is a powerhouse in the automotive world, known for its impressive torque and horsepower. For enthusiasts looking to enhance performance, upgrading components can lead to significant improvements. One popular upgrade is the installation of the Comp Cams’ XE274H camshaft. This article explores the expected results and costs associated with this upgrade.
Understanding the Comp Cams XE274H Camshaft
The XE274H camshaft from Comp Cams is designed to optimize performance in high-performance applications. It features a unique design that enhances the engine’s breathing capabilities, allowing for more air and fuel to enter the combustion chamber.
Specifications of the XE274H Camshaft
- Duration at .050″ Lift: 274 degrees intake / 286 degrees exhaust
- Lift: .510″ intake / .520″ exhaust
- LSA (Lobe Separation Angle): 110 degrees
- RPM Range: 2,500 – 6,500
These specifications indicate that the XE274H camshaft is ideal for those looking to increase both low-end torque and high-end horsepower. Its design allows for a broad power band, making it suitable for various driving conditions.
Expected Performance Gains
When upgrading to the XE274H camshaft, users can expect notable improvements in engine performance. Here are some anticipated benefits:
- Increased horsepower: Many users report gains of 30-50 horsepower over stock camshafts.
- Enhanced torque: The camshaft can provide a noticeable increase in torque, especially in the mid-range RPMs.
- Improved throttle response: The engine becomes more responsive, allowing for quicker acceleration.
- Better sound: The XE274H produces a more aggressive exhaust note, appealing to performance enthusiasts.
These performance gains make the XE274H a popular choice among Chevy 454 owners looking to maximize their engine’s potential.
Installation Considerations
Installing the XE274H camshaft requires some mechanical knowledge and the right tools. Here are key considerations for the installation process:
- Compatibility: Ensure that the camshaft is compatible with your specific Chevy 454 engine model.
- Supporting modifications: Consider upgrading other components such as the intake manifold, carburetor, and exhaust system for optimal performance.
- Timing chain replacement: It’s advisable to replace the timing chain during camshaft installation.
- Proper tuning: After installation, a professional tune may be required to maximize performance gains.
Taking these considerations into account can help ensure a successful installation and optimal performance from your new camshaft.
Cost Breakdown
When budgeting for the installation of the XE274H camshaft, it’s essential to consider both the cost of the camshaft itself and any additional expenses. Here’s a breakdown of potential costs:
- Comp Cams XE274H Camshaft: Approximately $300 – $400
- Installation labor: $200 – $500, depending on the shop and location
- Supporting modifications (if necessary): $500 – $1,500
- Tuning services: $150 – $300
Overall, the total investment for upgrading to the XE274H camshaft can range from $1,300 to $2,700, depending on the extent of modifications and labor costs.
Conclusion
Upgrading to the Comp Cams XE274H camshaft on your Chevy 454 is an effective way to maximize power and performance. With expected horsepower and torque gains, along with an aggressive sound, this camshaft is a worthwhile investment for serious enthusiasts. By considering installation requirements and associated costs, you can make an informed decision to enhance your vehicle’s performance.