7 Best Spark Plugs for 5.7 Chevy [Reviews & Buying Guide]

Ignition system initiates the spark to start the vehicle engine functionality. And every convenient system requires a dependable spark plug regarding the issue.

Even for the existing versions of 5.7 Chevy, the case is no different. The popular vehicle requires care for its replacement parts to ensure performance.

Skip unnecessary, improper, unworthy choices with the best spark plugs for 5.7 Chevy. We already narrowed down the list to elaborate on the important facts.

Look into the quick comparison of our preferable picks.

Best Spark Plugs for 5.7 Chevy – Comparisons

ProductMaterialKey FeatureFitmentPrice
1. Bosch Automotive 8104 Spark PlugDouble PlatinumContinuous Laser Welding1996 – 2015
2. ACDelco 41-993 Professional Spark PlugIridiumIdle Stabilizing Smoothness1991 – 2006
3. NGK # 1465 Laser Spark PlugIridiumCorrugated Insulator Ribs2002 – 2013
4. NGK 7397 TR5IX IX Spark PlugIridiumAnti-Fouling Action System2000 – 2013
5. ACDelco Gold 6 RAPIDFIRE Spark PlugCopperBooted Seal Plug1993 – 2011
6. Denso 3473 Spark PlugIridiumSolid Terminal Nut2002 – 2013
7. Autolite APP605 Spark PlugDouble PlatinumNo Gap Erosion1991 – 2002

7 Best Spark Plugs for Chevy 5.7 Vortec Reviews

Going through the table has to enlighten the mind with primary basics. But you’ll need a detailed review for deciding the ultimate purchase. Therefore, check out the best spark plugs for 5.7 Chevy from below.

1. Bosch Automotive 8104 Spark Plug

Bosch Automotive 8104 Spark Plug. best spark plugs for 5.7 chevy

Improvise the current ignitability of your engine system on every startup.

There is no brand to compete with Bosch in the machine tools industry. And its automotive section induces one reliable plug to trigger the spark.

Coming out of the most sophisticated facility, the best spark plugs for 5.7 Chevy promises satisfying performance. Obviously, the price seems standard for its service.

Features & Benefits

Service Lifespan

Integrated ground electrode features a conductive copper core. It helps with the heat transfer upon necessity. And the intended portion comes with a finely wired firing pin on the outside. Therefore, its effective design calls for less voltage.

OEM Replacement

Fused iridium pin gets a 360° laser welding without discontinuity. Apart from a prolonged lifespan, it enables higher ignitability. Ultra-fine wire suits specified systems at once. And the compatibility measures somewhat wide for the model.

Protective Shell

A durable nickel-plated shell to cover the exterior includes cold-rolled threads. It imparts consistent anti-seize & anti-corrosion properties. Meanwhile, the design delivers a rugged insulator to prevent flashover. The facility also eliminates gap requirements.


  • Pretty wide compatibility.
  • Smooth transfer of heat.
  • No flashover, seize, or rust.
  • Built-in finely wired pins.


  • Duplicate plug delivery.


2. ACDelco 41-993 Professional Spark Plug

ACDelco 41-993 Professional Spark Plug

Enjoy the exactly original, factory-specified performance from certain aftermarket products.

Only a few brands like ACDelco managed to satisfy customers with convenience. Its featured 41-993 plug set imparts professional specs to induce output.

Experience, innovation, quality – everything teams up towards maximized startup safety. And the price stands lower in comparison to Bosch 8104.

Features & Benefits

Quality Framing

Professional design lets iridium to make up the entire structure. It allows compact framing for AC Delco Iridium spark plugs 5.7 Vortec. Also, high conductivity leads to immediate sparking action. Likewise, effective electrode functionality can withstand internal adversity.

Stabilized Output

Incredible idle stability helps to smoothen the engine action on demand. Improved ignition of fuel encourages higher resistance to cold startup. Minimizing the effect of carbon deposit initiates pretty fast acceleration. And it’s likely to improve the overall economy.

Inner Protection

Single-piece suppressor seal performs certain tasks to protect the interior parts. It meters the energy to extend the electrode life. The seal itself stands against combustion leakage. Blocking of radiofrequency keeps the electronics secure.


  • Prolonged electrode lifespan.
  • Lowering of fuel consumption.
  • Functional suppressor sealing.
  • Burning of internal buildups.


  • Improper pre-gap distance.


3. NGK # 1465 Laser Spark Plug

NGK Laser Spark Plug.

Initiate an immediate spark for the smooth startup of the engine system.

NGK itself is one reputed brand to market quality automotive parts. It’s intended #1465 outmatches most other cheap aftermarket replacements.

Higher efficiency makes the best spark plugs for 5.7 Vortec one convenient purchase. And it’s likely to cost you some worthy bucks from the wallet.

Features & Benefits

Superb Ignition

Supporting design throughout the frame helps with the ignition against pre-startup adversity. High melting point remains functional against intense heat & pressure stress. Excellent anti-fouling property can save your hassle down the roads.

Welded Iridium

Primary metal structure features laser welding to impart superior sparking action. Eventually, it results in high ignitability without sacrificing the expected durability. The integrated electrodes can stand against mechanical rigors prior to engine startup.

Prolonged Nose

It’s the lengthened nose of the integrated insulator to help with the fouling. The action induces excellent durability against frequent, rough, or extended uses. Not to mention, the compatibility measures good for popular Chevy versions.


  • Standard heat conduction.
  • Excellent throttle response.
  • Premium welded iridium.
  • Certain savings on mileage.


  • Slight initial misfires.


4. NGK 7397 TR5IX IX Spark Plug

NGK 7397 TR5IX IX Spark Plug

Skip cold startup with the righteous spark to fire up the engine.

Even the following one to make the list comes from NGK. The featured TR5IX goes well as the best spark plugs for 350 Chevy engine.

It’s more like a convenient alternative to the previously mentioned model. The price tag looks pretty good for every basic offering.

Features & Benefits

Faster Response

Specialized design concerns with efficiency & performance to satisfy enthusiasts. Iridium alloy skips mechanical wear & other deterioration for pushing the output forward. As it happens, improved throttle response lets you enjoy faster acceleration.

Standard Wiring

Iridium shapes the cores of both the built-in electrodes, ground & central. Standard 0.6mm sized wiring covers the tip to enable higher ignitability. Tapered ground electrode triggers consistency in sparks without any quenching effect.

Corrugated Ribs

There come corrugated ribs on its insulator, featuring a prolonged nose. Trivalent metal plating imparts high resistance to damaging corrosion, rust & seize. Integration of triple gasket sealing resolves problems concerning combustion leaks.


  • Superior electrode design.
  • Flashover preventing ribs.
  • Enriched pack with 8 pieces.
  • Tapered ground electrode.


  • Wearing out problems.


5. ACDelco Gold 6 RAPIDFIRE Spark Plug

ACDelco Gold 6 RAPIDFIRE Spark Plug

Let the aftermarket replacement deliver the exact same performance of OE parts.

As it happens, ACDelco still has something to offer towards the initial spark. The premium Gold 4 RapidFire covers essential points rather satisfactorily.

High-quality output of the best spark plugs for small block Chevy comes to support everyday use. And the price appears ridiculously low against the offered features.

Features & Benefits

Supporting Materials

Absolutely copper makes up the core to induce high conductivity. Meanwhile, the central platinum electrode imparts great mechanical characteristics. The metal retains effective action against all odds. It enables superb heat transfer against low voltage requirements.

Solid Suppressor

Integrated suppressor comes in a solid-state. There’s two-piece glass with a brass seal to accompany the portion. It protects the system against intense combustion pressure. Regulation of sparking energy promotes electrode life.

Superb Optimization

Unlike most other, the insulator features no built-in rib. Still, it helps with the maximization of the boot seal. Nickel top secures the interior from elements. Least radio frequency interference encourages the electronic services.


  • Highly secure ignition system.
  • Extended durability of output.
  • Absolutely rib-less insulator.
  • Consistent energy on sparks.


  • Issues regarding metal wear.


6. Denso 3473 Spark Plug

Denso 3473 Spark Plug

Impart exceptional startup efficiency for engine systems against all conditions.

Denso feels like one dependable name in the whole automotive industry. And its 3473 deliberately aims at your satisfying needs.

The best spark plugs for Chevy suburban can stand against inconvenient ignition prior to the start. Again, the price remains moderate to deliver its overall offerings.

Features & Benefits

Superb Strength

Iridium itself features a high melting point to hold its solidity. You’re to receive better service than platinum. The strength is pretty reliable against internal rigors. It can withstand immense heat & pressure.

Supporting Electrodes

Both the integrated electrodes feature an iridium core to induce conductivity. Of course, metal tip on the tops prevents depository buildups. Barely any wear/abrasion/corrosion is likely to hamper the expected output.

Secure Function

The entire mechanism remains intact behind its sturdy cover. Superb ignitability eliminates the hassle regarding cold startup. And the effective functionality gets to achieve its peak performance every time.


  • Pretty durable metal body.
  • Minimal interior damage.
  • Heavy-duty spark support.
  • Highly protective exterior.


  • Slightly under-gapped.


7. Autolite APP605 Spark Plug

Autolite APP605 Spark Plug

Receive the peak engine performance down the road, regardless of the conditions.

The last one to make the list feature a certain specialty. Autolite develops APP605 to meet satisfaction at once.

Optimization in definite sectors is to please your time with the vehicle. Even the price is pretty lower than most others.

Features & Benefits

Double Platinum

Premium double platinum covers the basic frame throughout its design. And it directly initiates incredibly high heat conductivity. Completely platinum tips help with erosion, corrosion & deposit problems.

Electrode Design

Necked-down position of the central electrode enables a convenient response. Less voltage requirement imparts quick, clean, immediate fire. Meanwhile, the copper core electrode ensures maximum efficiency on output.

Precise Gapping

There comes one unique side electrode of a high-quality nickel alloy. It specifically encourages the retention of precisely gapped distance. Therefore, the best spark plugs for a 5.7 1500 Chevy induces an improved economy.


  • Smooth, fast, secure startup.
  • Quick acceleration of speed.
  • Pretty lower call for voltage.
  • No erosion of gap from tips.


  • Initial issues may occur.


How to Choose the Best Spark Plugs for 5.7 Vortec?

Choosing the most suitable automotive part is one difficult task. An overwhelming number of choices are ready to mess with the mind. It’s quite true for spark plugs, concerning vehicle response.

But you can easily attend the high-quality ones by yourself. You need to get the key considerations to control the quality. Then it should help you to purchase the best spark plugs for chevy 5.7 vortec.

Specified Fitment

Not every plug feature similar specs. There are variations to consider for specified vehicles. You better check out the manual to determine the suitable ones. It’ll also help you to avoid unnecessary choices.

Overall Materials

Either iridium or platinum covers the majority of the market. The metal itself plays a role in delivering convenient performance. There are others like silver, copper & brass. But for Chevy, you have to decide the type from Ir or Pt.

Built-in Electrodes

There are two integrated electrodes for every plug – ground & central. Either of the electrodes can feature different metal. You ought to look into the construction for both. Try to focus on core & shell materials.

Protective Action

Heat & pressure is likely to cause damage to internal parts. It’s essential to withstand adversity. higher protective measures mean better output every time. The plug has to feature certainties against all deteriorating elements.

Brand Originality

An unauthorized seller is likely to sell duplicate products. And you can’t expect to get the peak outcome from the engine. You must check out the country of origin first. Then check the reviews & feedbacks to reach authorized dealers.

Frequently Asked Questions (FAQs)

Q: What brand of spark plugs does Chevy use?

Answer: There stands no strict brand to fit Chevy plug requirements. But AC Delco & NGK have several models to satisfy the specs.

Q: How many spark plugs do a 5.7 Chevy have?

Answer: The number of required spark plugs depend on engine cylinder specs. Most 5.7 Chevy have V8 configuration, demanding 8 plugs in total.

Q: Is Iridium spark plugs better than platinum?

Answer: Iridium is one definite choice regarding high melting point & longevity. And platinum goes rather well for exceptional heat transfer.


Defective or improper spark plug concerns with definite problems for any engine. You’ll have to settle down for the best spark plugs for 5.7 Chevy in the end. And the aforementioned words should help you with the choice.

Bosch Automotive 8041 Spark Plug has to take the 1st position for certain reasons. The design includes particular features to deliver obvious benefits. And the price holds good, taking important aspects into account.

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