AC 427 Spark Plugs

Your One-Stop Shop For Trusted AC 427 Spark Plugs

If you’re in search of AC 427 Spark Plugs aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 2 Spark Plugs from top brands with prices ranging from $2.99 to $4.49.

Beyond great prices, we stock trusted brands manufacturing all types of Spark Plugs for your AC 427. Of the 2 OEM and aftermarket parts brands we carry, some of the most popular are Autolite and Champion.

And don’t forget to read customer reviews across all Spark Plugs categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Spark Plugs have to cost top dollar, and we prove it. Browse our top AC 427 Spark Plugs below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Essential AC 427 Spark Plugs

Champion – Copper Plus Spark Plug: Dependable Performance, OE Replacement, RF9YC (Part No.409)

Copper Plus Spark Plug: Dependable Performance, OE Replacement, RF9YC

from

$2.99
Dependable performance. This Champion spark plug features a copper core electrode that provides increased conductivity and heat control for good overall wear.

Product Features:
  • Copper Plus – Dependable Performance.
  • Copper core center electrode allows for accurate control of heat range for longer life
  • Patented TinTac and ULTRASEAL coated shell for maximum corrosion resistance
  • Patented SAC-9 semiconductor resistor for maximum EMI & RFI suppression
  • Built to ISO and SAE standards for proven performance
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Autolite – Racing Non-Resistor Spark Plug: Enables Performance, Handles Intense Conditions (Part No.AR33)

Racing Non-Resistor Spark Plug: Enables Performance, Handles Intense Conditions

from

$4.49
The ground electrode is cut-back from the center electrode to provide a gap. The face of the ground electrode is concave to provide a constant gap to the center electrode. This plug is designed use in all aftermarket cylinder heads used in different types of racing venues including oval and road racing.

Product Features:
  • Opens spark face for better ignitability of flame kernel
  • Retains less heat, transfers heat to shell faster – reduces risk of pre-ignition
  • Dyno testing has shown proven power gains
  • Cut-back ground electrode evolved from practice of grinding back the side electrode
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Spark Plugs Brands You Can Trust For Your AC 427

2 trusted brands of Spark Plugs line our shelves, ready to help keep your AC 427 running smooth. Below are some of the most popular brands and their top Spark Plugs offerings: