Is it really true that the right camshaft can transform your Shovelhead engine’s performance? You might be surprised by how much power and efficiency a well-chosen cam can release. With options like the Andrews AB and A2, each designed for specific model years, understanding the nuances of these camshafts can lead to significant improvements. So, what should you consider when selecting the perfect cam for your setup? Let’s explore the top choices and the factors that could make all the difference in your ride.

Key Takeaways

• The Andrews C Cam (84-96) offers peak performance with a valve lift of .525 and a broad torque range for big street engines.
• For 1970-1977 models, the Andrews J Cam stands out with a perfect rating of 5.0, enhancing power without idle compromise.
• The Andrews A2 Cam (78-84) enhances mid-range and high-end power while maintaining smooth idle performance, making it an excellent choice for many riders.
• Consider the valve lift and duration specifications, as they directly influence power output and RPM performance for your Shovelhead engine.

Andrews AB Cam for Harley Davidson Shovelhead 78-84

The Andrews AB Cam is the ideal choice for 1978-1984 Harley Davidson Shovelhead owners seeking a bolt-in street cam that boosts performance without compromising reliability.

Manufactured in the USA from high-quality alloy steel billets, this cam offers exceptional durability.

With an intake duration of 244 degrees and a valve lift of .450, it optimizes airflow, while the long duration exhaust of 256 degrees guarantees cooler running and robust high-end power.

Designed specifically for hydraulic lifters, the cam’s compatibility with Shovelhead models makes installation straightforward.

Customer feedback reflects satisfaction, noting significant performance improvements and ease of installation.

Overall, the Andrews AB Cam stands out as a solid investment for enhancing Shovelhead engine performance, earning a respectable customer rating of 4.1 out of 5 stars.

Best For: Harley Davidson Shovelhead owners from 1978-1984 looking to enhance engine performance with a reliable and easy-to-install cam.

Pros:

• Improves performance significantly, providing a noticeable boost in power.
• Easy installation process, making it suitable for both experienced and novice mechanics.

Cons:

• Limited compatibility as it does not fit 1984 Evolution Engine models.
• Potential for incorrect parts being sent, as noted in some customer feedback.

Andrews A2 Cam for Harley Davidson Shovelhead 78-84

Designed specifically for 1978-1984 Harley Davidson Shovelhead models, the Andrews A2 Cam enhances mid-range and high-end power without affecting idle performance.

This cam bolts directly into Big Twin engines from 1966 to 1984, ensuring straightforward installation with no head work required.

However, it’s crucial to recognize restrictions on 1980-81 engines due to valve guide height affecting spring travel.

With a valve lift of .450 and a duration of 242 degrees at .053 for intake and 248 degrees for exhaust, this cam boosts performance efficiently.

Weighing 1.9 pounds and measuring 7.8 x 3.4 x 3.3 inches, it’s a durable choice made in the USA.

Customer ratings average 4.2 out of 5 stars, reflecting its popularity among Shovelhead enthusiasts.

Best For: Riders of 1978-1984 Harley Davidson Shovelhead models seeking to enhance their motorcycle’s mid-range and high-end performance.

Pros:

• Improves mid-range and high-end power without affecting idle performance.
• Straightforward installation with no head work required for most Big Twin engines.

Cons:

• Compatibility limitations with 1980-81 engines due to valve guide height restrictions.
• Shipping issues reported by some customers, such as delays.

Andrews C Cam for Harley Davidson Shovelhead 78-84

For Harley Davidson Shovelhead enthusiasts seeking peak performance, the Andrews C Cam stands out as the best production cam for big street engines and strokers from 84 to 96 inches.

Designed specifically for 1978-1984 Shovelhead models, it features a broad torque range of 2,000 to 7,000+ RPM, making it ideal for those who demand power.

With a valve lift of .525, it requires hi-lift springs for maximum performance.

The cam’s advanced design utilizes high-quality alloy steel and state-of-the-art grinding technology, ensuring reliability and enhanced performance.

Customer feedback reflects satisfaction, with a perfect rating of 5.0 out of 5 stars.

Overall, the Andrews C Cam is a top choice for Shovelhead owners looking to elevate their engine’s capabilities.

Best For: Harley Davidson Shovelhead owners seeking to enhance their engine’s performance with a high-quality cam designed for big street engines and strokers.

Pros:

• Broad torque range of 2,000 to 7,000+ RPM for versatile performance.
• High-quality manufacturing using advanced computer design technology and alloy steel for durability.

Cons:

• Limited compatibility as it only fits 1978-1984 Shovelhead models and does not work with the 1984 Evolution Engine.
• Requires hi-lift springs, which may necessitate additional purchases for optimal performance.

Andrews A2 Cam for Harley Davidson Shovelhead Engines

Engine enthusiasts seeking enhanced mid-range and high-end power will appreciate the Andrews A2 Cam, specifically crafted for 1970-1977 Harley Davidson Shovelhead models. This cam delivers impressive specifications, featuring a valve lift of .450 inches for both intake and exhaust, ensuring peak performance without affecting idle quality.

With an intake duration of 242 degrees at .053 inches and an exhaust duration of 248 degrees at the same measurement, riders can expect a significant boost in power.

Made in the USA, the Andrews A2 Cam is designed using advanced computer technology and high-quality alloy steel for reliability.

It’s suitable for various Big Twin engines from 1966-1984, although special considerations are necessary for 1980-81 models due to valve guide restrictions.

Best For: Engine enthusiasts looking to boost mid-range and high-end power in their 1970-1977 Harley Davidson Shovelhead models.

Pros:

• Enhanced mid-range and high-end power without affecting idle quality.
• Durable construction using high-quality alloy steel and advanced manufacturing technology.

Cons:

• Installation requires careful checking of coil bind and clearances, which may be challenging for some users.
• Not suitable for 80-81 models without addressing valve guide restrictions.

Andrews J Cam for Harley Davidson Shovelhead 70-77

The Andrews J Cam is a top pick for 1970-1977 Harley Davidson Shovelhead owners seeking to enhance their ride’s power and performance without compromising a smooth idle.

Manufactured in the USA by Andrews Products, this cam is designed specifically for mild street applications. It effectively increases power throughout the RPM range while ensuring a consistent idle.

With a bolt-in installation process that requires no head work, it’s user-friendly for mechanics and enthusiasts alike.

The cam features a valve lift of .405 and a duration of 242 degrees at .053 for both intake and exhaust.

Rated 5.0 out of 5 stars by users, it’s clear that the Andrews J Cam delivers a reliable performance upgrade for Shovelhead engines.

Best For: The Andrews J Cam is best for 1970-1977 Harley Davidson Shovelhead owners looking to enhance their motorcycle’s performance while maintaining smooth operation.

Pros:

• Increases power throughout the RPM range, improving overall performance.
• Bolt-in installation requires no head work, making it user-friendly for DIY mechanics.

Cons:

• Limited to mild street applications, which may not suit those seeking aggressive performance upgrades.
• Installation requires checking for coil bind and clearances, adding a step for installers.

Andrews AB Cam for Harley Davidson Panhead/Shovelhead 48-69

Designed specifically for Harley Davidson Panhead and Shovelhead models from 1948 to 1969, the Andrews AB Cam enhances high-end power while ensuring cooler running temperatures.

This cam features a long duration exhaust, which markedly improves overall performance without sacrificing reliability.

It’s a bolt-in street cam that’s compatible with hydraulic lifters, making installation straightforward for riders looking to upgrade their engines.

Weighing just 1.13 pounds and measuring 6.5 x 3.5 x 3.5 inches, the cam combines efficiency with practicality.

The Andrews AB Cam holds a respectable ranking in automotive replacement engine camshafts, reinforcing its popularity among enthusiasts.

With a 30-day return guarantee and warranty options available, it offers peace of mind for those investing in enhanced performance.

Best For: Riders seeking to enhance the performance of their Harley Davidson Panhead or Shovelhead models from 1948 to 1969 with a reliable and efficient cam upgrade.

Pros:

• Improves high-end power for a more responsive riding experience.
• Designed for cooler running temperatures, reducing engine stress.

Cons:

• Limited to specific Harley models (Panhead/Shovelhead 1948-1969), which may not suit all riders.
• Performance enhancements may require additional tuning for optimal results.

V-Twin 10-0660 – Cam Chest Assembly Kit Shovelhead

Offering an extensive set of internal Big Twin replacement parts for specified years, the V-Twin 10-0660 Cam Chest Assembly Kit is an ideal choice for Shovelhead enthusiasts looking to enhance their engine performance.

Weighing just 3.35 pounds, this kit measures 7 x 7 x 5 inches, making it compact yet powerful. Designed specifically for Shovelhead engines, it guarantees compatibility and reliability.

Since its release on March 12, 2015, it has gained recognition, ranking #21,713 in Powersports Engine Parts on Amazon.

Additionally, customers can benefit from a 30-day voluntary return guarantee, offering peace of mind with their purchase.

With this kit, riders can expect improved engine performance and longevity, making it a worthwhile investment for any Shovelhead owner.

Best For: Shovelhead enthusiasts seeking to enhance their engine performance with reliable replacement parts.

Pros:

• High compatibility with specified Shovelhead engines ensures optimal performance.
• Compact size and lightweight design make installation and handling easier.

Cons:

• Limited to specific years may not suit all Shovelhead models.
• Best Sellers Rank suggests lower popularity in comparison to other engine parts.

Factors to Consider When Choosing a Cam for Shovelhead

When choosing a cam for your Shovelhead, you need to evaluate several key factors.

Think about your engine’s compatibility, your performance goals, and how complex the installation will be.

Don’t overlook the material quality and the specifics like valve lift and duration, as they can greatly impact your engine’s performance.

Engine Compatibility Requirements

It’s vital to confirm that the camshaft matches your specific Shovelhead model year, as compatibility varies considerably across different years. For instance, some cams are designed exclusively for the 1978-1984 models and won’t fit the 1984 Evolution engine. Before making a purchase, check if the camshaft requires any head work for installation. Many models allow for a straightforward bolt-in installation without modifications, which can save you time and effort.

Also, keep in mind the valve guide height limitations for specific model years, particularly 1980-81. These limitations may restrict spring travel and ultimately affect the camshaft’s performance. It’s important to verify that the camshaft’s specifications, including valve lift and duration, align with your engine’s setup. This guarantees that you achieve the desired performance characteristics.

Lastly, confirm that the camshaft is crafted from high-quality materials and through reliable manufacturing processes. This attention to detail will help assure maximum performance and longevity in your Shovelhead engine.

Performance Goals and Needs

Choosing the right cam for your Shovelhead hinges on your performance goals, whether you’re aiming for a robust mid-range torque or exhilarating high-end power. Different cams have unique profiles tailored for specific RPM ranges, so identify where you want your engine to perform best.

Next, evaluate the valve lift specifications. Higher lift can greatly enhance airflow and power, but be aware that you might need compatible springs and verify there’s enough clearance.

Additionally, consider the duration of the cam; longer durations typically excel in high-end power and help maintain cooler running temperatures, especially for exhaust valves.

Compatibility with hydraulic lifters is another vital aspect. Confirm the cam matches your Shovelhead’s model year to avoid performance issues.

Installation Complexity and Ease

Installing a cam in your Shovelhead can range from straightforward to complex, depending on the design and specific requirements of your engine. Some cam types allow for a bolt-in installation without needing any head work, while others might require modifications or checks for coil bind and clearances, which can add to the complexity.

Compatibility is key, especially with specific model years. For instance, some cams have restrictions based on valve guide height and spring travel limits, particularly for 1980-1981 models. Always double-check that your chosen cam aligns with your Shovelhead’s specifications.

The weight of the cam also plays a role in installation ease. Most Shovelhead cams weigh between 1.15 to 2 pounds, so consider how that impacts handling during the process. While many manufacturers design cams for easy installation, it’s your responsibility to verify all clearances and coil bind to confirm everything fits and functions properly.

Advanced computer technology in cam design can enhance performance and reliability, often simplifying the installation by minimizing potential fitment issues.

Material Quality and Durability

Material quality and durability are essential factors that directly impact the performance and longevity of your Shovelhead’s camshaft. When you’re choosing a cam, you want to prioritize high-quality alloy steel billets. These materials can withstand the intense conditions of your engine operation, ensuring both durability and peak performance.

Consider the heat-treating processes used in the manufacturing of the camshaft. These processes enhance the strength and wear resistance of the material, which is vital for maintaining engine reliability over time.

Advanced computer design technology is also important, as it contributes to the precision and consistency of the cam profiles, directly affecting your engine’s overall performance.

You’ll find that cams designed with long duration exhaust features tend to run cooler, which is a significant advantage for both engine longevity and performance.

In short, investing in premium materials and construction techniques greatly reduces the likelihood of cam failure. This means you’ll enjoy a more dependable ride with fewer worries about potential issues down the line.

Always remember, the right camshaft can make a world of difference in your Shovelhead’s performance and durability.

Valve Lift and Duration

When selecting a cam for your Shovelhead, understanding valve lift and duration is vital for optimizing engine performance and airflow.

Valve lift refers to how high the valve is lifted off its seat, with typical values ranging from .405 to .525 inches. This lift directly impacts engine airflow, affecting your bike’s overall performance.

Duration, measured in degrees, indicates how long the valve remains open. Higher duration values, such as 244 to 278 degrees, can lead to increased power at higher RPMs. For example, a longer duration exhaust at 256 degrees can help your engine run cooler, enhancing high-end performance, which is critical depending on your riding style.

Additionally, consider the lift at Top Dead Center (TDC), as it determines how much air enters the combustion chamber. Values like .156 inches for intake and .234 inches for exhaust can greatly influence engine efficiency.

Finally, verify compatibility with hydraulic lifters, as this affects the cam’s functionality in different setups, impacting overall performance and reliability.

Price and Budget Considerations

Considering price and budget is essential when choosing the right cam for your Shovelhead, as performance options can range anywhere from $150 to over $300. Start by evaluating your budget constraints to narrow down your choices. Look for the best cost-to-performance ratio to guarantee you’re making a smart investment.

Don’t forget to factor in installation costs, which can add an additional $100 to $200 depending on local shop rates. If you’re handy, you might save on these costs by doing it yourself, but make sure you have the necessary skills to avoid costly mistakes.

Warranties and return policies are also vital. Some manufacturers offer limited warranties that can provide peace of mind and protect your investment in the long run. Before making a purchase, take some time to research customer feedback and ratings. This can help you gauge the performance and reliability of different cams within your budget, potentially saving you money on returns or replacements.

In the end, balancing performance with your financial situation will help you choose the right cam for your Shovelhead without breaking the bank.

Frequently Asked Questions

What Tools Are Needed for Camshaft Installation on a Shovelhead Engine?

When you’re installing a camshaft on a Shovelhead engine, you’ll need several essential tools.

Start with a torque wrench for accurate tightening. A camshaft alignment tool will help you position it correctly.

Don’t forget a socket set for removing and installing components, and a pick tool can assist with oil seal installation.

How Do I Know if My Camshaft Needs Replacement?

You hear a strange ticking sound as you ride, like a heartbeat struggling to keep up.

You realize it might be time to assess your camshaft. Check for excessive wear or pitting, and listen for unusual noises during idle.

If you notice a drop in performance or your engine’s running rough, it’s a strong sign your camshaft’s on its last legs.

Don’t wait too long; you might be risking further damage.

Can I Mix Camshafts From Different Brands?

You can mix camshafts from different brands, but it’s crucial to guarantee compatibility.

Different brands may have unique specifications that could affect performance and reliability.

Check the lift, duration, and timing of the camshafts you’re considering. If they’re compatible, you might achieve desired results, but be cautious.

It’s often best to stick with one brand for consistency and to avoid any unforeseen issues that could arise from mixing components.

What Is the Break-In Period After Installing a New Camshaft?

After installing a new camshaft, you’ll need to allow for a proper break-in period, typically around 500 to 1,000 miles.

During this time, it’s essential to monitor your engine’s performance and oil pressure closely. You should avoid heavy loads and high RPMs to make certain everything settles correctly.

Regular oil changes and checks on the valve lash are recommended to prevent premature wear and guarantee peak performance.

How Does Cam Timing Affect Engine Performance?

Cam timing greatly affects your engine’s performance by determining when the valves open and close in relation to the piston’s position.

If you optimize the timing, you’ll enhance power delivery, improve throttle response, and gain better fuel efficiency.

Conversely, improper cam timing can lead to lost power, poor acceleration, and engine roughness.

It’s vital to verify your cam timing is set correctly for the best overall performance from your engine.

Conclusion

In the world of Shovelhead engines, choosing the right camshaft is like selecting the compass for your journey—each option guides you toward power and performance.

With the right cam, you release the potential to transform your ride, enhancing both mid-range and high-end capabilities.

Whether you’re cruising the open road or tackling custom builds, these top seven camshafts offer the tools you need.

Embrace the adventure, and let your Shovelhead soar to new heights.