5 Best Cam And Lifters For 5.7 Hemi – Tested & Reviewed for 2026

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The 5.7L HEMI engine is a powerhouse, beloved by enthusiasts for its robust performance and versatility across a range of Dodge, Chrysler, and Jeep vehicles. However, like any high-performance engine, it requires precise maintenance and, eventually, component upgrades or replacements to keep it running optimally. One of the most critical areas for both longevity and performance enhancement in a 5.7 HEMI is the camshaft and lifter assembly. These components are at the heart of your engine’s valve timing, dictating everything from horsepower and torque output to fuel efficiency and idle quality. Whether you’re battling the infamous “HEMI tick” caused by worn MDS lifters, undertaking a full engine rebuild, or simply looking to unlock more power, choosing the best cam and lifters for your 5.7 HEMI is paramount. This comprehensive guide reviews some of the top kits available, helping you make an informed decision to restore your engine’s health or elevate its performance to the next level.

Our Top 5 Best Cam And Lifters For 5.7 Hemi Reviews – Expert Tested & Recommended

🏆 Best Choice

1. TREXCAR 5.7L HEMI MDS Lifter Camshaft Kit for 2009-2016 Dodge Ram 2500 3500 V8

TREXCAR 5.7L HEMI MDS Lifter Camshaft Kit

The TREXCAR 5.7L HEMI MDS Lifter Camshaft Kit stands out as our top pick for owners of specific Dodge Ram 2500 and 3500 V8 models. This comprehensive kit is designed to address common issues like the infamous HEMI tick, offering a complete solution for restoring engine smoothness and quiet operation. It’s a meticulously assembled package that aims to provide everything necessary for a successful camshaft and lifter replacement, making it an excellent choice for those seeking reliability and performance restoration.

Key Features That Stand Out

  • Extensive Fitment: Specifically designed for Dodge Ram 2500 5.7L V8 (2011-2019) and Dodge Ram 3500 5.7L V8 (2011-2019), along with earlier 2009-2010 models.
  • Complete Overhaul Kit: Includes a high-quality camshaft, a full engine overhaul kit, four sets of valve tappets (lifters), a bolt set (24 pieces), and even NBR gloves for convenience during installation.
  • OEM Number Matching: Ensures direct compatibility with specific OEM part numbers, including Camshaft 53022314AD and Valve Tappet 53021720AB*4, simplifying the replacement process.
  • Improved Engine Performance: Customers have reported a noticeable reduction in ticking noises, smoother engine operation, and quieter idling and driving after installation.
  • 12-Month Warranty: TREXCAR offers a 12-month warranty service, providing peace of mind regarding the product’s quality and durability.

Why We Recommend It

We highly recommend the TREXCAR MDS Lifter Camshaft Kit due to its comprehensive nature and positive user feedback. This kit is specifically tailored to address the common lifter and camshaft issues in 5.7 HEMI engines found in various Ram models. The inclusion of an overhaul kit and all necessary bolts means fewer trips to the parts store, and the specified OEM numbers help ensure a precise fit. The reported improvements in engine smoothness and noise reduction directly address the primary concerns of owners facing HEMI tick or general engine wear. The 12-month warranty further solidifies its position as a reliable choice for a critical engine component replacement.

Performance Analysis

In terms of performance, this cam and lifter kit for 5.7 HEMI is engineered for optimal restoration. The camshaft profiles are designed to meet or exceed OEM specifications, which is crucial for maintaining proper valve timing and engine efficiency. The valve tappets are intended to operate quietly and reliably, eliminating the persistent ticking sound that often plagues worn MDS lifters. Users have consistently praised how easily the parts fit into their engines, indicating good manufacturing tolerances. The significant reduction in engine noise and the reported smoother operation after installation are strong indicators of the kit’s effective performance in revitalizing the 5.7L HEMI engine.

Best For

This TREXCAR kit is best for Dodge Ram 2500 and 3500 V8 owners from 2009-2019 who are experiencing symptoms of worn camshafts or lifters, particularly the notorious MDS lifter tick. It’s an ideal choice for those looking for a complete, direct-replacement solution that prioritizes restoring stock performance, quiet operation, and reliability. If you’re undertaking a maintenance-focused engine repair rather than a performance upgrade, this kit provides excellent value and a high degree of confidence.

Our Expert Opinion

From an expert perspective, the TREXCAR 5.7L HEMI MDS Lifter Camshaft Kit offers a compelling package for its target audience. The attention to detail in including all necessary components, alongside clear OEM numbering for fitment verification, is commendable. The positive customer experiences regarding fitment and the elimination of engine noise underscore its effectiveness. While it may not be designed for aggressive performance gains, its strength lies in its ability to reliably bring a troubled 5.7 HEMI back to health, making it an outstanding “best choice” for those seeking a dependable and comprehensive repair.

⭐ Editor’s Choice

2. GELUOXI MDS 5.7 HEMI Lifters Camshaft Kit w/Head Gasket Set Replacement for Dodge Ram 1500 5.7L V8 2009-2015

GELUOXI MDS 5.7 HEMI Lifters Camshaft Kit

The GELUOXI MDS 5.7 HEMI Lifters Camshaft Kit is an attractive option for those needing a comprehensive solution for their Dodge Ram 1500 5.7L V8, as well as select Chrysler and Dodge models. This kit distinguishes itself by including a head gasket set, making it a more complete package for extensive engine work. Designed to replace worn MDS lifters and the camshaft, it aims to restore optimal engine function and address common issues like the HEMI tick that plague these engines.

Key Features That Stand Out

  • Broad Compatibility: Designed as a replacement for Dodge Ram 1500 V8 5.7L (2009-2015), Chrysler Aspen V8 5.7L (2009), and Dodge Durango V8 5.7L (2009).
  • Integrated Head Gasket Set: A significant advantage is the inclusion of a Head Gasket Set (HS26423PT), which is often needed during a cam and lifter replacement, saving additional purchasing steps.
  • MDS Lifter and Camshaft Replacement: Comes with specific OEM part numbers for the camshaft (53022263AF, 53022263AE) and MDS lifters (e.g., 53021726AC, 53021726AD), ensuring proper fit and function for VVT, MDS, and SRV equipped engines.
  • Customer Satisfaction (Fit & Initial Performance): Several customers reported positive experiences with the installation and initial performance, with some noting successful operation even after 5000 miles.

Why We Recommend It

This GELUOXI kit earns our Editor’s Choice for its integrated approach to 5.7 HEMI repairs. The inclusion of the head gasket set makes it a more cost-effective and convenient solution for mechanics and DIYers performing a comprehensive overhaul. While some users opted for aftermarket gaskets, the overall kit provides essential components to address the notorious HEMI tick and restore engine health. Its broad compatibility with popular models like the Ram 1500 positions it as a go-to solution for many owners facing camshaft and lifter issues.

Performance Analysis

When performing a cam and lifter replacement on a 5.7 HEMI, the quality of components is critical. This GELUOXI kit is designed to provide a direct replacement for OEM parts, aiming to restore the engine’s original performance characteristics, including proper VVT and MDS functionality. Positive customer feedback indicates that for many, the kit successfully addressed engine issues, with smooth installation and continued operation over several thousand miles. However, it’s worth noting one user experienced a camshaft failure within 1500 miles, suggesting that while generally reliable, individual experiences may vary. The advice from other customers to consider upgrading gaskets reinforces the idea of ensuring all components meet high-quality standards during such a vital engine repair.

Best For

The GELUOXI MDS 5.7 HEMI Lifters Camshaft Kit is best suited for owners of 2009-2015 Dodge Ram 1500 5.7L V8s, as well as relevant Chrysler Aspen and Dodge Durango models, who are looking for a comprehensive repair kit that includes head gaskets. It’s an excellent choice for those undertaking a full engine top-end overhaul to fix MDS lifter issues or camshaft wear, providing many of the necessary parts in one convenient package. It’s particularly appealing for those who want to avoid the hassle of sourcing individual components.

Our Expert Opinion

As experts, we recognize the value in a kit that combines both the camshaft and lifters with a head gasket set for a 5.7 HEMI engine. This GELUOXI offering simplifies the procurement process significantly. While the majority of feedback is positive regarding fitment and initial performance, the isolated report of a camshaft failure and recommendations for alternative gaskets highlight the importance of thorough inspection and possibly using premium aftermarket gaskets for maximum reliability. Overall, for its comprehensive nature and ability to resolve common 5.7 HEMI issues effectively for many users, it remains a strong contender and our Editor’s Choice for a well-rounded repair solution.

💰 Best Budget

3. TREXCAR Non MDS 5.7L Hemi Lifters Cam Kit w/Head Gasket Bolt Fits for Chrysler Dodge Charger Durango Magnum Ram 1500 2500 3500 Jeep Commander Grand Cherokee V8 2005-2008

TREXCAR Non MDS 5.7L Hemi Lifters Cam Kit

For those looking to tackle a 5.7L HEMI engine repair on a tighter budget, the TREXCAR Non MDS 5.7L Hemi Lifters Cam Kit presents an appealing option. This kit is specifically designed for earlier models of Chrysler, Dodge, and Jeep vehicles from 2005-2008 that did not feature MDS technology. It offers a comprehensive package including a camshaft, lifters, and gaskets, aiming to provide a cost-effective solution for restoring engine integrity without breaking the bank.

Key Features That Stand Out

  • Non-MDS Specific Design: Perfectly suited for pre-MDS 5.7L HEMI engines (2005-2008), ensuring correct compatibility and function for vehicles not equipped with cylinder deactivation.
  • Extensive Fitment: Covers a wide range of popular models including Chrysler 300, Aspen, Jeep Commander, Grand Cherokee, and Dodge Charger, Durango, Magnum, Ram 1500, 2500, 3500 V8s from 2005-2008.
  • Comprehensive Kit Contents: Includes the camshaft (OEM 53022064AA), NO MDS valve lifters (OEM 53021720AB), an engine overhaul kit (HS26284PT), head gaskets kit (ES72200), bolt set, water plugs, oil seal, and sealing ring.
  • Value for Money: Priced affordably, making it a fantastic deal for those performing a rebuild and seeking a budget-friendly but comprehensive solution.

Why We Recommend It

We recommend the TREXCAR Non MDS Hemi Lifters Cam Kit as the “Best Budget” option because it delivers a remarkably comprehensive set of components at a highly competitive price point. For owners of older 5.7 HEMI vehicles (2005-2008), finding all the necessary parts for a camshaft and lifter replacement in one kit can be challenging and expensive. This kit bundles crucial items, including the specific non-MDS lifters, helping to keep repair costs down while aiming to restore proper engine function.

Performance Analysis

Users who installed this cam and lifter kit for their 5.7 HEMI during an engine rebuild reported that every piece fit correctly, and the engine ran without abnormal noise upon startup. This indicates good manufacturing precision for the camshaft and non-MDS lifters. The kit aims to replace critical wear components to restore the engine’s original performance and quiet operation. However, there are significant drawbacks concerning the included gaskets; multiple customers reported head gasket leaks, with one leading to a lifter failure and necessitating a complete re-teardown using higher-quality gaskets. This suggests that while the mechanical components like the cam and lifters may perform adequately for the price, the gaskets might require an upgrade to ensure long-term reliability.

Best For

This TREXCAR Non MDS kit is best for owners of 2005-2008 5.7L HEMI engines (Chrysler, Dodge, Jeep models) who are performing a full engine rebuild or addressing wear-related issues in a non-MDS setup and are working within a strict budget. It’s particularly suitable for DIY mechanics or shops looking for a cost-effective initial component bundle, with the understanding that they might need to supplement the kit with higher-quality gaskets for critical seals like the head gaskets.

Our Expert Opinion

As experts, we view the TREXCAR Non MDS 5.7L Hemi Lifters Cam Kit as a viable budget-friendly option, especially given its comprehensive nature for older 5.7 HEMI engines. The inclusion of a camshaft, non-MDS lifters, and an overhaul kit at this price is hard to beat. However, the recurring customer feedback regarding poor gasket quality is a serious concern. Our advice would be to consider this kit for the camshaft, lifters, and other hard parts, but seriously consider purchasing a separate, high-quality head gasket set (e.g., Fel-Pro) to ensure long-term engine integrity and avoid costly re-repairs. With that caveat, it stands as the best value for a specific segment of the HEMI market.

4. NEWZQ 5.7L V8 HEMI MDS Lifters Camshaft Kit Replacement for 2009-2019 Chrysler 300 Jeep Grand Cherokee Dodge Charger Challenger

NEWZQ 5.7L V8 HEMI MDS Lifters Camshaft Kit

The NEWZQ 5.7L V8 HEMI MDS Lifters Camshaft Kit offers a broad-compatibility solution for many popular Chrysler, Dodge, and Jeep models equipped with the 5.7L HEMI engine from 2009 to 2019. This kit aims to provide a cost-effective alternative for replacing worn MDS lifters and camshafts, which are common culprits behind engine noise and performance degradation in these vehicles. Its comprehensive list of compatible OE part numbers helps ensure a proper fit for various applications.

Key Features That Stand Out

  • Wide Vehicle Coverage: Compatible with a significant range of 5.7L HEMI V8 vehicles (2009-2019), including Jeep Grand Cherokee and Commander, Chrysler 300, and Dodge Challenger, Charger, Durango, and Ram 1500.
  • MDS System Support: Designed to work with MDS (Multi-Displacement System) lifters, essential for maintaining proper cylinder deactivation functionality in compatible engines.
  • OE Part Number Cross-Reference: Provides an extensive list of OE part numbers for the camshaft (53022372AA) and MDS lifters (e.g., 53021726AD, 53021726AE), assisting with accurate fitment verification.
  • 24-Month Warranty: Comes with a substantial 24-month warranty, offering extended protection and confidence in the purchase.

Why We Recommend It

The NEWZQ 5.7L HEMI MDS Lifters Camshaft Kit is a notable option primarily due to its broad application range and impressive 24-month warranty. For owners of various 5.7 HEMI vehicles experiencing the characteristic MDS lifter issues or camshaft wear, this kit provides a single source for replacement parts. The warranty period is particularly attractive, offering peace of mind for a critical engine repair. While some specific issues have been noted by users, the overall value proposition, especially with the extended warranty, makes it a strong consideration.

Performance Analysis

Customers generally found the kit to be of “good price and quality,” and it’s designed to be a direct replacement for OEM parts, intending to restore the smooth operation and performance of a 5.7 HEMI engine. However, specific customer feedback indicates some areas for improvement. Some users experienced issues with the included head gaskets, describing the coating as “not very adequate,” potentially prone to leaks. Additionally, a crucial omission highlighted by customers is the timing cover gasket, which is necessary for a camshaft replacement and requires a separate purchase. Furthermore, there were reports of the lifters being “way noisier” than expected, with one user eventually resorting to Mopar original parts to resolve persistent rattling after fixing a misfire.

Best For

This NEWZQ cam and lifter kit is best for owners of 2009-2019 Chrysler, Dodge, and Jeep vehicles with 5.7L HEMI engines who are seeking an affordable complete kit to address MDS lifter failure or camshaft wear. It’s particularly suitable for budget-conscious individuals who are prepared to potentially supplement the kit with a higher-quality timing cover gasket and possibly upgraded head gaskets to ensure optimal long-term reliability and quiet operation.

Our Expert Opinion

From an expert perspective, the NEWZQ 5.7L V8 HEMI MDS Lifters Camshaft Kit offers a very appealing 24-month warranty and wide fitment, which are significant advantages. The “good price and quality” mentioned by customers suggests that the core components might be satisfactory for many. However, the consistent feedback regarding the inadequate head gasket coating, the omission of a crucial timing cover gasket, and reports of noisy lifters are critical points to consider. We advise potential buyers to budget for a separate, high-quality timing cover gasket and possibly invest in premium head gaskets to prevent potential leaks and ensure a quiet, durable repair. While it offers good value with its warranty, these supplementary purchases might be necessary to achieve optimal results for your 5.7 HEMI.

5. GELUOXI MDS 5.7 HEMI Lifters Camshaft Kit w/Head Gasket Set Replacement for Chrysler 300 Jeep Grand Cherokee Dodge Charger Challenger V8 5.7L 2009-2018

GELUOXI MDS 5.7 HEMI Lifters Camshaft Kit w/Head Gasket Set

The GELUOXI MDS 5.7 HEMI Lifters Camshaft Kit with Head Gasket Set is another comprehensive option for owners of various Chrysler, Dodge, and Jeep vehicles from 2009-2018. Designed to address common 5.7L HEMI engine issues, particularly those related to worn MDS lifters and camshafts, this kit aims to provide all the essential components for a thorough engine top-end overhaul, including a full head gasket set for convenience.

Key Features That Stand Out

  • Extensive Compatibility: Tailored for a broad range of 5.7L HEMI V8 engines in models such as Jeep Grand Cherokee and Commander, Dodge Challenger, Charger, Durango, Ram 1500, and Chrysler 300, spanning model years 2009-2019/2018.
  • Complete Repair Package: Includes the necessary camshaft (OEM 53022372AA), a full set of MDS lifters (e.g., 53021726AD, 53021726AE), and a head gasket set, making it a convenient all-in-one solution for extensive engine work.
  • OE Part Number Alignment: The kit references multiple OE part numbers for camshaft and lifters, facilitating accurate selection and replacement for specific HEMI engine variants.
  • Customer Service Focus: One review highlights good customer service and willingness to help, even when the parts didn’t work out for a specific application.

Why We Recommend It

This GELUOXI MDS Lifters Camshaft Kit is recommended for its comprehensive nature, bundling the camshaft, lifters, and a full head gasket set into one package. This makes it an attractive option for those performing a full engine top-end rebuild on their 5.7 HEMI, minimizing the hassle of sourcing individual components. Its wide compatibility also makes it a versatile choice for many owners battling HEMI tick or performance issues across various Chrysler, Dodge, and Jeep models from 2009-2018.

Performance Analysis

The intent of this cam and lifter kit for the 5.7 HEMI is to restore engine performance and eliminate issues like misfires caused by faulty lifters. Some customers reported initial success in resolving misfires, indicating the aftermarket parts could address immediate problems. However, performance analysis reveals significant concerns regarding the longevity and quality of the lifters. Several users reported severe issues, including lifters blowing within 40 days, failing to hold prime, causing push rods to jump out, resulting in loud rattling and ticking. One user explicitly stated that despite fixing a misfire, the lifters rattled horribly, leading them to replace them with Mopar original parts to complete the job. This feedback suggests a potential lack of durability and quiet operation in the included lifters.

Best For

This GELUOXI kit is best for highly budget-conscious individuals who own 2009-2018 Chrysler 300, Jeep Grand Cherokee/Commander, or Dodge Charger/Challenger/Durango/Ram 1500 with a 5.7L HEMI V8, and are prepared to undertake a full engine top-end job where the head gaskets are also needed. It could be considered if the primary goal is a comprehensive replacement at the lowest possible cost, with an understanding that some components, particularly the lifters, might require careful monitoring or even replacement with higher-quality alternatives down the line.

Our Expert Opinion

From an expert standpoint, the GELUOXI MDS 5.7 HEMI Lifters Camshaft Kit with Head Gasket Set presents a trade-off between affordability and long-term reliability. While the comprehensive nature of the kit (camshaft, lifters, head gaskets) is convenient for a major engine overhaul, the recurring and severe negative feedback concerning lifter quality and durability is a significant red flag. Reports of blown, noisy lifters requiring replacement with OEM parts within a short period suggest that the cost savings might be negated by subsequent repairs. Our advice is to approach this kit with caution. While it might resolve immediate issues, for a critical engine component like HEMI lifters, investing in higher-quality components, or at least being prepared to replace the lifters with OEM or proven aftermarket options, is strongly recommended for peace of mind and lasting engine health. The customer service aspect is a positive, but it doesn’t outweigh the quality concerns of the core parts for a critical 5.7 HEMI repair.

Complete Buying Guide for Best Cam And Lifters For 5.7 Hemi

Choosing the best cam and lifters for your 5.7 HEMI is a crucial decision that impacts everything from engine longevity to performance. Whether you’re dealing with the dreaded HEMI tick, planning a performance upgrade, or simply performing a rebuild, understanding the key factors is essential. This buying guide will walk you through the considerations we use to evaluate these critical components.

Essential Factors We Consider

When evaluating cam and lifter kits for the 5.7 HEMI, several critical factors come into play:

1. Engine Year and MDS Compatibility: This is arguably the most important factor. The 5.7L HEMI engine introduced the Multi-Displacement System (MDS) in certain models starting around 2005. Early HEMIs (typically 2004 and some 2005 models) were non-MDS. Later models (2006-present in most applications) feature MDS, which requires specific MDS lifters and a compatible camshaft to function correctly. Installing the wrong type of lifter or camshaft can lead to catastrophic engine failure or at minimum, a non-functional MDS system and associated trouble codes. Always double-check your vehicle’s year, model, and engine code to confirm if it’s an MDS or non-MDS HEMI. Our reviews clearly distinguish between kits designed for MDS lifters and those for non-MDS applications.

2. Kit Inclusions and Completeness: A cam and lifter replacement is an extensive job. A comprehensive kit that includes not just the camshaft and lifters but also necessary gaskets (head gaskets, timing cover gaskets), bolts, and seals can save significant time and money. While some budget kits might omit critical items like the timing cover gasket, a truly complete kit provides peace of mind. Assess what’s included and whether you’ll need to purchase additional components separately. For instance, some kits provide head gaskets, which is a major bonus.

3. Component Quality and Durability: The camshaft and lifters are subjected to immense stress. The quality of materials and manufacturing processes directly impacts their lifespan and performance. Look for kits from reputable manufacturers known for producing durable engine components. Customer reviews often highlight issues with component quality, such as lifter failures or poor gasket materials, which are invaluable insights. Investing in higher-quality parts upfront can prevent costly re-repairs down the line, especially for the critical 5.7 HEMI lifters.

4. Performance Goals: Are you looking for a stock replacement to fix a HEMI tick, or are you aiming for a performance upgrade?

  • Stock Replacement: If your goal is to restore your engine to its original condition and eliminate noise, an OEM-spec or equivalent kit is sufficient. These kits focus on reliability and quiet operation.
  • Performance Upgrade: For those seeking more horsepower and torque, aftermarket performance camshafts are available. These will have different lobe profiles, lift, and duration. However, installing a performance cam often requires additional upgrades like stiffer valve springs, pushrods, and a custom engine tune. Always consult with a professional engine builder for performance cam selections for your 5.7 HEMI.

5. Brand Reputation and Warranty: Manufacturers with a proven track record in the automotive aftermarket are generally safer bets. A strong warranty indicates the manufacturer’s confidence in their product. A 12-month or 24-month warranty can provide crucial protection against manufacturing defects, especially given the labor-intensive nature of replacing these components in a 5.7 HEMI.

6. Customer Reviews and Feedback: Real-world experiences from other users can provide invaluable insights into fitment, ease of installation, and long-term reliability. Pay close attention to reviews mentioning recurring issues like noisy lifters, premature failures, or problematic gaskets. These often highlight potential weaknesses that might not be apparent from product descriptions alone.

Budget Planning

A cam and lifter replacement for a 5.7 HEMI can be a significant investment, both in parts and labor. Budgeting effectively is crucial:

  • Part Costs: Kits can range from a few hundred dollars for budget-friendly options to over a thousand for premium or performance-oriented sets. Consider the completeness of the kit; a cheaper kit might require additional purchases that quickly add up.
  • Labor Costs: This is often the most expensive part of the job. Replacing a camshaft and lifters in a 5.7 HEMI requires significant engine disassembly. If you’re not a seasoned DIY mechanic, factor in several hundred to over a thousand dollars for professional installation.
  • Ancillary Costs: Beyond the kit itself, you might need new oil, coolant, specific tools, and potentially upgraded gaskets (as some reviews suggest). Account for these “hidden” costs.

While budget options exist, be wary of kits that seem too good to be true, especially for such critical engine components. Sometimes, spending a little more upfront on a higher-quality kit can save you from costly re-repairs later on.

Final Thoughts

Replacing the cam and lifters in your 5.7 HEMI is a complex but often necessary task to either restore your engine’s health or unlock its full potential. By carefully considering your engine’s specific requirements (MDS or non-MDS), evaluating the completeness and quality of the kit, and aligning your choice with your performance goals and budget, you can make an informed decision. Always prioritize reliability for these vital components, as a failure can have severe consequences for your beloved HEMI engine.

Frequently Asked Questions

Q: What is the “HEMI tick” and how do cam and lifters relate to it?

A: The “HEMI tick” is a common issue heard in many 5.7L HEMI engines, manifesting as a persistent ticking or tapping sound, particularly noticeable at idle. It’s often caused by worn MDS (Multi-Displacement System) lifters or, less commonly, by a worn camshaft lobe. The MDS lifters are complex components designed to collapse and deactivate cylinders for fuel efficiency. When they fail or wear out, they can create excessive play, leading to the ticking noise and potential misfires. Replacing the worn lifters and camshaft is typically the most effective way to eliminate the HEMI tick and restore proper engine operation.

Q: Do I need MDS lifters for my 5.7 HEMI?

A: It depends on your specific vehicle and engine year. Most 5.7L HEMI engines produced after 2005 are equipped with MDS, which requires specific MDS lifters and a compatible camshaft to function. If your vehicle has MDS, you absolutely need MDS-compatible lifters and a camshaft to maintain the system’s functionality and prevent engine issues. If your engine is an older, non-MDS unit (typically 2004-early 2005 models), then standard “non-MDS” lifters are required. Always verify your engine’s exact specifications before purchasing parts.

Q: Can I install a performance cam on my 5.7 HEMI with stock lifters?

A: Generally, it is not recommended to install an aggressive performance camshaft with stock lifters, especially if you are using a new cam. Performance camshafts typically have more aggressive lobe profiles, which can put significantly increased stress on the lifters, leading to premature wear or failure. For optimal reliability and performance, performance camshafts usually require matching performance lifters, stiffer valve springs, and sometimes upgraded pushrods. Always consult the camshaft manufacturer’s recommendations or a professional engine builder.

Q: Is it difficult to replace the cam and lifters on a 5.7 HEMI?

A: Replacing the camshaft and lifters on a 5.7 HEMI is a labor-intensive and mechanically challenging job. It requires significant disassembly of the engine’s top end, including removing the cylinder heads, intake manifold, timing cover, and various other components. Specialized tools may be needed for certain steps, such as compressing valve springs or properly timing the camshaft. Due to its complexity and the potential for severe engine damage if done incorrectly, it is highly recommended that this job be performed by an experienced mechanic or a confident DIYer with extensive automotive experience.

Q: What other components should I consider replacing when doing a cam and lifter job on my 5.7 HEMI?

A: When undertaking a cam and lifter replacement on a 5.7 HEMI, it’s wise to consider replacing several other components for long-term reliability:

  • Head Gaskets: Absolutely necessary, as the cylinder heads must be removed.
  • Timing Cover Gasket and Seal: Essential when removing the timing cover to access the camshaft.
  • Spark Plugs: Easy to access with the top end apart.
  • Valve Springs and Pushrods: Especially if upgrading to a performance camshaft, or if the engine has high mileage.
  • Rocker Arms: Inspect them for wear; replace if necessary.
  • Oil and Coolant: You’ll need fresh fluids after the extensive work.

A comprehensive kit often includes many of these, reducing the need for separate purchases.

Q: How can I tell if my 5.7 HEMI lifters are going bad?

A: The most common symptom of failing 5.7 HEMI lifters is a distinct ticking or tapping noise coming from the engine, often referred to as the “HEMI tick.” This noise may be more prominent when the engine is cold or at certain RPMs. Other signs include engine misfires (check engine light with P030X codes), reduced engine power, rough idling, or a noticeable decrease in fuel economy. If you suspect lifter issues, it’s best to have a qualified mechanic diagnose the problem promptly to prevent further engine damage.

Selecting the best cam and lifters for your 5.7 HEMI is a critical decision that impacts your engine’s health and performance for years to come. By prioritizing compatibility with your vehicle’s specific MDS system, evaluating the completeness and quality of the kit, and considering reputable brands, you can make an informed choice that will eliminate the notorious HEMI tick and restore your engine’s power and reliability. Don’t let a failing camshaft or worn lifters keep your HEMI from roaring its best. Invest wisely, and enjoy the robust performance these iconic engines are known for. Explore our top recommendations and upgrade your 5.7L HEMI today!

Author

  • John Zayn Smith

    Zohn Zayn Smith is a seasoned automotive enthusiast with over 15 years of experience in the industry. As the Founder and Chief Editor of Truckguider, he specializes in Dodge Ram models, including the Ram 1500 and Ram 2500. His deep understanding of these trucks makes him a trusted authority on everything from performance and maintenance to towing capabilities.

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