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The Pontiac 455 is a powerful engine that has been cherished by car enthusiasts for decades. When considering performance upgrades, many owners look into camshaft options to enhance their engine’s capabilities. Among the popular choices are the Comp Cams 268H and 280H camshafts. This article delves into whether these camshafts are worth the investment based on owner insights.
Understanding Camshaft Specifications
Before diving into owner experiences, it’s essential to understand the specifications of the Comp Cams 268H and 280H camshafts. Each camshaft offers unique characteristics that can significantly impact engine performance.
- Comp Cams 268H: This camshaft features a duration of 224° at 0.050″ lift, with a lift of 0.454″ and a lobe separation angle of 110°.
- Comp Cams 280H: With a duration of 230° at 0.050″ lift, this cam has a lift of 0.480″ and a lobe separation angle of 110°.
Owner Insights on Comp Cams 268H
Many Pontiac 455 owners who have installed the Comp Cams 268H camshaft report positive experiences. Here are some common insights:
- Improved Low-End Torque: Owners frequently mention a noticeable increase in low-end torque, making the engine feel more responsive, especially during acceleration.
- Street-Friendly Performance: The 268H is often described as a great choice for street-driven cars, providing a balance between performance and drivability.
- Sound Quality: Enthusiasts appreciate the aggressive sound that the 268H produces, adding to the overall driving experience.
Owner Insights on Comp Cams 280H
The Comp Cams 280H camshaft also has its share of advocates among Pontiac 455 owners. Here are the key takeaways from those who have made the switch:
- Higher RPM Power: Many owners report that the 280H camshaft excels in the higher RPM range, providing a significant boost in horsepower.
- Performance Enthusiasts: This camshaft is often favored by those who prioritize performance and are willing to sacrifice some low-end torque for higher RPM gains.
- Compatibility with Upgrades: The 280H pairs well with other performance modifications, such as upgraded intakes and exhaust systems.
Comparing the Two Camshafts
When deciding between the Comp Cams 268H and 280H, it’s important to consider your specific driving needs and performance goals. Here’s a comparison based on owner feedback:
- Driving Style: Choose the 268H for a more street-friendly experience and better low-end torque. Opt for the 280H if you’re focused on high RPM performance.
- Installation Complexity: Both camshafts require similar installation processes, but the 280H may necessitate additional tuning for optimal performance.
- Cost Considerations: While both camshafts are relatively affordable, the overall cost will increase with necessary supporting modifications for the 280H.
Common Concerns Among Owners
While many owners enjoy their Comp Cams camshafts, some concerns have been raised:
- Idle Quality: Some users report that the 280H camshaft can lead to a rougher idle, which may not be suitable for all drivers.
- Fuel Economy: Increased performance often comes at the cost of fuel economy, a factor that some owners find disappointing.
- Compatibility Issues: Owners have occasionally encountered compatibility issues with factory components, necessitating upgrades.
Conclusion: Are They Worth It?
Ultimately, whether the Comp Cams 268H or 280H camshafts are worth it for your Pontiac 455 depends on your performance goals and driving style. Both camshafts have garnered positive feedback from owners, showcasing their ability to enhance engine performance in different ways. For those seeking a balance of power and drivability, the 268H is a solid choice. Conversely, if high RPM performance is your priority, the 280H could be the right fit.
As with any modification, it’s crucial to consider the overall setup of your vehicle and consult with professionals if needed. Happy driving!