Spark Plug Guide for the 1987-1993 Chevrolet Camaro

Signs of Failing Spark Plugs

Worn-out spark plugs can cause noticeable problems in your Camaro. Because they fire thousands of times per minute, the electrodes eventually wear down. This increases the gap the spark must jump, weakening the ignition. You might notice one or more of these symptoms:

• Rough Idle: The engine may shake or vibrate more than usual when stopped.
• Poor Acceleration: The car feels sluggish or hesitant when you press the gas pedal.
• Engine Misfires: You may feel a stumbling or jerking from the engine, and the Check Engine Light might come on.
🎬 Learn how to troubleshoot engine misfires on your V8.
• Difficulty Starting: The engine cranks but struggles to start, or fails to start at all.
• Reduced Fuel Economy: You'll find yourself filling up the gas tank more often than before.

Choosing the Right Aftermarket Spark Plugs

You don't need to buy the most expensive plugs to get great performance. For most 1987-1993 Camaros with stock or lightly modified engines, standard copper plugs are the original and often best choice. They offer excellent performance but have a shorter lifespan. Platinum and iridium plugs offer a much longer service life but can be more expensive and sometimes cause issues in older V8s.

Brand Quality Tiers

Here’s a breakdown of the available brands based on owner experiences and general reputation for this generation of Camaro:

• OEM Standard & Premium Choices (Recommended):

  • ACDelco: As the original GM parts supplier, you can't go wrong with ACDelco for a factory-correct spark. They are the go-to for a reliable, stock replacement.
  • NGK: Highly recommended by Camaro owners, NGK plugs are known for their quality and reliability, often considered an upgrade over stock. Many owners prefer standard NGK copper plugs for TPI engines.
  • Denso: Another high-quality Japanese manufacturer, Denso plugs are a solid choice, with some later GM vehicles using them from the factory.

• Reputable Aftermarket & Performance Brands:

  • Autolite: A well-regarded brand offering good quality copper and platinum plugs that meet or exceed original specifications.
  • Champion: A long-standing brand that provides reliable standard replacement plugs. Some owners report slight performance improvements even with their basic copper plugs in TBI engines.
  • MSD: Known for high-performance ignition systems, MSD plugs are a good option for modified engines that need a stronger spark.
  • Accel: Another performance-oriented brand, often chosen for modified Camaros.

• Use with Caution:

  • Bosch: While a major brand, many third-gen Camaro owners report poor performance, especially with platinum plugs in V8 engines, citing a lack of power. Standard copper Bosch plugs may be fine, but fancier versions are often not recommended for these specific engines.
  • Motorcraft: This is Ford's official parts brand. While they may offer a part that fits, it's not a typical or recommended choice for a GM vehicle.
  • Skyward: This is likely a budget or private-label brand. Quality and performance are unknown, and it's generally safer to stick with established brands.

Aftermarket Spark Plug Cost

Frequently Asked Questions