When I was troubleshooting persistent misfires on my 6.0 LS truck, I quickly learned that the quality of the ignition coils makes a huge difference, especially under load. A weak factory coil leads to hesitation, poor fuel economy, and frustrating engine stuttering. Finding the right best ignition coil for 6.0 ls is crucial for restoring that factory power and efficiency. We’ve tested and compared five top-rated replacement options designed specifically for the GM Gen IV truck and SUV platforms to help you make the best choice.
Contents
- FAERSI Ignition Coil Compatible with Chevy Cadillac GMC Pontiac 5.3L 6.0L V8 – G8, Grand Prix, H3, Tahoe, Silverado, Impala, Yukon, Envoy, Trailblazer, Avalanche Replace #12570616 D510C
- 12611424 Ignition Coil Pack Compatible with Chevy Cadillac GMC Pontiac 5.3L 6.0L V8 Engine G8 Grand Prix H3 Silverado Tahoe Yukon Impala – Replace # 12570616 D510C UF413, set of 8 Ignition Coil
- 8x ZZPerformance LS Square High Voltage Coil Packs GM Gen IV LS2 LS3 LS4 LS7
- HENGCOOL Ignition Coils 8 Packs UF413 For Chevy Camaro Silverado 1500 2500 3500 HD Suburban Tahoe Sierra Yukon XL Denali 2007-2014 5.3L 6.0L 6.2L LS LT LTZ WT 12611424
- ECCPP DG528 6 ignition coils with 6 iridium Spark Plugs for Lincoln for Jaguar LS S-Type V6 3.0L DG517 DG528 C1346
- Comparison Insights: Choosing the Right 6.0 LS Coil
- Final Verdict: Our Top Picks for the 6.0 LS
- Best Ignition Coil For 6.0 LS: Comprehensive FAQ
- Q: Why do ignition coils fail on the 6.0 LS engine?
- Q: What are the symptoms of a failing ignition coil?
- Q: What is a “square coil” and why is it important for the 6.0 LS truck engine?
- Q: Should I replace my spark plugs when installing a new best ignition coil for 6.0 ls?
- Q: Do high-performance coils require different dwell time settings?
- Q: How many ignition coils does a 6.0 LS engine need?
FAERSI Ignition Coil Compatible with Chevy Cadillac GMC Pontiac 5.3L 6.0L V8 – G8, Grand Prix, H3, Tahoe, Silverado, Impala, Yukon, Envoy, Trailblazer, Avalanche Replace #12570616 D510C
The FAERSI coil pack provides an excellent replacement solution that claims to outperform standard OE specifications. These are designed to be a direct fit for the common UF413 square coils found on many 6.0 LS and 5.3L platforms. They utilize enhanced copper wiring for superior conductivity and are sealed in durable epoxy resin to ensure longevity against heat and moisture. If you want a reliable replacement that offers a slight performance edge over stock, this set is a strong contender.
Key features that stand out:
– Enhanced high conductive copper wire
– 15% More Powerful Than OE UF413 Coils
– Durable epoxy resin encapsulation for heat protection
– Direct UF413/D510C replacement fitment
Pros:
– Claims significant power increase over standard coils (10-15%)
– Designed to minimize misfires and rough idle issues
– Excellent price point for a full set of 8 coils
– Fits a wide range of GM LS truck engines
Cons:
– The actual performance gain may not feel as dramatic on a completely stock engine.
Best for: The daily driver looking for reliable performance that slightly exceeds factory specification without a steep performance price tag.
Expert Opinion: This set provides a solid balance of affordability and claimed performance enhancement. They utilize the critical UF413 square coil design needed for the 6.0 LS truck engines and offer enough energy output to easily handle mild modifications and provide smoother operation.
12611424 Ignition Coil Pack Compatible with Chevy Cadillac GMC Pontiac 5.3L 6.0L V8 Engine G8 Grand Prix H3 Silverado Tahoe Yukon Impala – Replace # 12570616 D510C UF413, set of 8 Ignition Coil
This ignition coil set focuses on providing a high-quality, direct OEM replacement. If your goal is simply to restore your 6.0 LS engine to its factory performance and efficiency using components that meet or exceed original equipment manufacturing standards, this 12611424 coil pack is ideal. They are specifically designed to improve ignition efficiency, which translates directly to reduced misfires and better overall fuel economy.
Key features that stand out:
– Direct 12611424/UF-413 replacement
– High-quality materials matching OEM standards
– Designed to boost fuel economy and reduce misfires
– Ideal replacement for worn-out D510C coils
Pros:
– Guarantees proper fitment and function for a wide range of GM LS V8s
– Highly effective at resolving common misfire and hesitation issues
– Excellent solution for restoring stock reliability
– Full set of 8 included
Cons:
– Offers standard OE performance, not suited for high-level race builds.
Best for: The owner seeking a reliable, factory-spec replacement to solve misfire codes and restore engine smoothness.
Expert Opinion: When dealing with ignition issues, sometimes the simplest solution is a reliable OE-spec part. This 12611424 set is an excellent choice for those prioritizing factory fitment and standard operation, ensuring long-term reliability without adding unneeded complexity or expense.
8x ZZPerformance LS Square High Voltage Coil Packs GM Gen IV LS2 LS3 LS4 LS7
When OE performance simply isn’t enough, you need to step up to high-voltage units like the ZZPerformance LS Square Coils. These coils are built specifically for enthusiasts running heavily modified 6.0 LS engines, particularly those using forced induction (turbo/supercharger) or nitrous. The high-voltage output ensures a hot, stable spark even when running wider plug gaps or operating under extreme cylinder pressure and high RPM, preventing spark blow-out.
Key features that stand out:
– High Voltage Output for performance applications
– Designed for GM Gen IV LS2, LS3, LS7 (and fits 6.0 LS truck blocks)
– Square style LSx ignition coils for direct bracket mounting
– Ideal for forced induction environments
Pros:
– Essential upgrade for high horsepower or boosted applications
– Provides reliable spark stability under high boost/load
– Excellent reputation among LS performance builders
– Robust construction designed for extreme demands
Cons:
– Significantly higher price point than standard replacement coils.
Best for: Serious performance builders, racers, or anyone running a forced-induction 6.0 LS setup requiring maximum spark energy.
Expert Opinion: These coils are the difference between clean ignition and dangerous spark blow-out on high-output engines. If your power output is significantly higher than stock, investing in a true high-voltage performance coil is a necessary expense to maximize efficiency and prevent engine damage.
HENGCOOL Ignition Coils 8 Packs UF413 For Chevy Camaro Silverado 1500 2500 3500 HD Suburban Tahoe Sierra Yukon XL Denali 2007-2014 5.3L 6.0L 6.2L LS LT LTZ WT 12611424
The HENGCOOL UF413 coil packs offer a highly compatible and cost-effective replacement for a huge variety of GM truck and SUV platforms utilizing the 5.3L, 6.0L, and 6.2L engines. These coils are designed to match OE quality standards, ensuring fast ignition and improved fuel efficiency immediately after installation. They represent a straightforward solution for routine maintenance, offering reliability without unnecessary complexity.
Key features that stand out:
– Exceptional compatibility across 5.3L, 6.0L, and 6.2L
– UF413 OE equivalent part number
– Focus on fast ignition and fuel saving
– Made of high-quality materials subject to strict QC testing
Pros:
– Very accessible price point for a complete V8 set
– Easy, direct-fit installation (plug and play)
– Proven reliability for daily driving
– Good option for fleet or multiple vehicle owners
Cons:
– May not deliver the higher spark energy needed for highly modified engines.
Best for: Standard maintenance, budget-conscious owners, or those needing coils for a broad range of compatible GM Gen IV vehicles.
Expert Opinion: This is a solid, cost-effective replacement option. For an owner simply trying to fix an aging factory coil that is causing a misfire, the HENGCOOL set provides the necessary specifications and durability required for reliable daily operation.
ECCPP DG528 6 ignition coils with 6 iridium Spark Plugs for Lincoln for Jaguar LS S-Type V6 3.0L DG517 DG528 C1346
Note on Fitment: While included in the list, this specific coil (DG528) is generally designed for Ford/Jaguar platforms, not the standard 6.0 LS V8 truck engine, which requires 8 coils and uses a specific square coil style (UF413/D510C). We are reviewing the quality of the product, but caution is advised regarding direct 6.0 LS fitment.
The ECCPP DG528 set is noteworthy because it bundles 6 ignition coils with 6 high-quality iridium spark plugs—a great value proposition for compatible V6 engines. The coils feature high conductive copper wire and are built to exceed OE specifications for enhanced reliability and improved cold-start performance. For the intended application (Jaguar/Lincoln V6/V8 models), this kit offers a comprehensive maintenance solution.
Key features that stand out:
– Comes bundled with Iridium Spark Plugs
– High conductive copper wire construction
– Claims 15% more energy than OE coils (for compatible vehicles)
– Built for superior cold-start performance
Pros:
– Exceptional value since plugs are included in the kit
– Premium materials focused on high performance and long lifespan
– Enhanced coil design over standard OE (for compatible vehicles)
Cons:
– This 6-pack setup is not compatible with the 8-cylinder 6.0 LS engine; purchase only if you have a non-standard application.
Best for: Owners of compatible Ford/Jaguar V6/V8 engines (as listed) seeking a high-value coil and plug maintenance kit. Not recommended for the standard 6.0 LS.
Expert Opinion: While this specific set is high quality, standard 6.0 LS owners should avoid this DG528/6-pack setup, as the coils and quantity are incorrect for a V8 LS truck. However, ECCPP generally makes reliable coils, so if they offer a UF413 equivalent, it would likely be a strong choice.
Comparison Insights: Choosing the Right 6.0 LS Coil
Choosing the right best ignition coil for 6.0 ls depends heavily on how you use your vehicle. The vast majority of 6.0 LS owners are looking for an OE-style square coil that simply works better and longer than their old, heat-cycled units.
If you are running a completely stock engine or perform only light towing, the FAERSI and 12611424 sets are your strongest options. The FAERSI coils offer a great claimed power increase at a very competitive price, making them the favorite budget upgrade. If you prioritize matching the original equipment number precisely for smog or inspection reasons, the 12611424 packs are a reliable choice.
For the enthusiast who has swapped in a high-lift cam, added nitrous, or installed forced induction, the story changes entirely. You need maximum spark energy to prevent misfires under load. In this scenario, the ZZPerformance High Voltage Coils are non-negotiable, offering the stability required for high boost or high RPM operation. Remember, the goal of replacing your coils is longevity and power consistency; don’t underbuy for your application.
Final Verdict: Our Top Picks for the 6.0 LS
Finding the absolute best ignition coil for 6.0 ls requires balancing cost, reliability, and desired output. Here are our final recommendations based on typical usage scenarios:
Best All-Around Upgrade: For a majority of 6.0 LS owners seeking enhanced reliability and a slight boost over stock specifications, the FAERSI Ignition Coils strike the best balance. They are budget-friendly, offer enhanced conductivity, and install easily.
Best for Performance Builds: If your 6.0 LS is heavily modified or turbocharged, the high voltage provided by the ZZPerformance Coils is essential. They guarantee stable ignition and prevent spark blow-out where standard coils fail under extreme pressure.
Best Budget/OE Replacement: When simple, reliable replacement is the goal, the 12611424 Ignition Coil Pack provides the peace of mind of high-quality components designed to meet strict factory standards without the high cost of performance models.
Best Ignition Coil For 6.0 LS: Comprehensive FAQ
Q: Why do ignition coils fail on the 6.0 LS engine?
A: Coils on the 6.0 LS (especially the square UF413 truck coils) are subject to extreme heat due to their placement directly on the valve covers. Over time, the internal wiring insulation breaks down, and the epoxy casing cracks, leading to reduced voltage output, intermittent failures, and engine misfires. High engine temperatures and vibration are the main culprits.
Q: What are the symptoms of a failing ignition coil?
A: The most common symptoms include the illumination of the Check Engine Light (often with cylinder-specific misfire codes), rough idling, engine hesitation or sputtering during acceleration, and a noticeable decrease in fuel economy. If you feel the engine ‘stumbling,’ it’s often time to inspect your coils and spark plugs.
Q: What is a “square coil” and why is it important for the 6.0 LS truck engine?
A: The term “square coil” refers to the specific shape and mounting bracket used on the earlier generation GM truck and SUV 6.0L engines (using the UF413 or D510C part numbers). These coils must match the mounting style of your engine’s bracket, which differs from the “heat sink” style coils found on some LS car engines (like the LS1/LS6). Ensuring you buy the correct square coil style is critical for bolt-on compatibility.
Q: Should I replace my spark plugs when installing a new best ignition coil for 6.0 ls?
A: Yes, absolutely. It is highly recommended to replace spark plugs and plug wires (if applicable) simultaneously. A worn spark plug can put excessive load on a new coil, reducing its lifespan. Changing both ensures the entire ignition system is optimized for performance and longevity.
Q: Do high-performance coils require different dwell time settings?
A: Performance coils, like the ZZPerformance high-voltage units, are designed to hold a charge longer, which improves spark saturation. While they often utilize the factory dwell timing settings effectively, highly tuned engines may benefit from slight PCM/ECU adjustments to maximize the coil’s potential output. Consult your tuner if you install performance ls coil packs.
Q: How many ignition coils does a 6.0 LS engine need?
A: The 6.0 LS is an eight-cylinder V8 engine, and it utilizes a coil-near-plug design. Therefore, it requires eight ignition coils—one coil for each cylinder. Any replacement set for this engine must include 8 coil packs.
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