fits make: Chevy.

( Brand: Crane Cams ), ( Manufacturer Part Number: 138551 ), ( Type: Camshaft ), ( Oe/oem Part Number: Crn-138551 ), ( Country/region Of Manufacture: United States ), ( Vintage Part: No ), ( Performance Part: Yes )
Introducing the Crane Cams 138551 Big Block Chevy Herbst Mechanical Roller Camshafts HB2, a high-performance camshaft solution designed for the most demanding Big Block Chevy engines. This camshaft set is engineered to deliver excellent power gains, improved engine response, and enhanced durability.
This Crane Cams set includes two camshafts: a 246/248 duration at 0.050-inch lift, and a 256/258 duration at 0.050-inch lift. Both camshafts are constructed using the finest materials, including a billet steel base and Precision Roller Grind cam lobes. The Herbst Mechanical Roller Cam design features self-lubricating, self-adjusting, and self-centering roller tip technology, minimizing the need for periodic adjustments and reducing wear on the engine components.
The Crane Cams 138551 set also includes high-performance hydraulic roller lifters that provide a positive lash elimination system and eliminate the need for pushrods and lifter bushings. The hydraulic roller lifters offer a smoother, more consistent valve train operation and improve engine efficiency.
These Big Block Chevy camshafts feature a 112-degree lobe separation angle, which optimizes the engine's power band and provides exceptional torque and horsepower gains. The camshafts also include a 0.550-inch valve relief, which ensures proper valve clearance and eliminates the possibility of valve contact during high-RPM operation.
The Crane Cams 138551 Big Block Chevy Herbst Mechanical Roller Camshafts HB2 are designed to work seamlessly with stock or aftermarket Big Block Chevy engines and are suitable for street, strip, and race applications. This camshaft set is backed by Crane Cams' industry-leading warranty and exceptional customer support.
In summary, the Crane Cams 138551 Big Block Chevy Herbst Mechanical Roller Camshafts HB2 is a high-performance, durable, and efficient solution for those seeking to enhance the power and response of their Big Block Chevy engine. With its advanced design, exceptional build quality, and proven performance gains, this camshaft set is an excellent choice for any Big Block Chevy enthusiast.
Crane Cams 138551 Big Block Chevy Herbert Mechanical Roller Camshafts HB2 are aftermarket camshafts designed to enhance the performance of your Big Block Chevy engine. Here are some pros and cons that might help you make an informed decision about purchasing these camshafts:
Pros:1. Enhanced Performance: These camshafts are designed to provide better engine performance by increasing the lift, duration, and overlap of the valves. This results in improved power and torque output.
2. Roller Cam: The roller cam design reduces friction and wear compared to traditional flat tappet cams, leading to longer camshaft life and improved engine efficiency.
3. Customizable: These camshafts are available in various lift sizes and durations, allowing you to customize the camshaft to suit your specific engine build and performance goals.
4. Heritage Design: The Herbert mechanical roller cam design is a classic and proven design that has been used in high-performance Big Block Chevy engines for decades.
Cons:1. Cost: Aftermarket camshafts like the Crane Cams 138551 can be quite expensive compared to stock camshafts.
2. Installation: Installing aftermarket camshafts can be a complex and time-consuming process that requires specialized tools and expertise.
3. Clearance: These camshafts may require valve clearance adjustments after installation, which can add to the installation time and cost.
4. Compatibility: These camshafts may not be compatible with all Big Block Chevy engines or aftermarket parts, so it's important to verify compatibility before purchasing.
Conclusion:The Crane Cams 138551 Big Block Chevy Herbert Mechanical Roller Camshafts HB2 offer significant performance benefits, including increased lift, duration, and overlap, as well as reduced friction and wear. However, they also come with some drawbacks, such as cost, complexity of installation, and potential compatibility issues.
If you're building a high-performance Big Block Chevy engine and are looking for a proven design that can provide significant power gains, then these camshafts may be worth the investment. However, if you're on a tight budget or are building a more basic engine, then stock camshafts may be a more cost-effective option. Ultimately, the decision to purchase these camshafts depends on your specific engine build goals, budget, and expertise.
Recommendation:If you're looking for high-performance aftermarket camshafts for your Big Block Chevy engine and have the budget and expertise to install them, then the Crane Cams 138551 Big Block Chevy Herbert Mechanical Roller Camshafts HB2 are a solid choice. However, if you're on a tight budget or are building a more basic engine, then it may be worth considering stock camshafts or exploring other aftermarket options that may be more cost-effective. It's also important to ensure that the camshafts are compatible with your specific engine build and aftermarket parts before making a purchase.
Big Block Chevy Herbert Mechanical Roller Camshafts HB2.