This is a set of 6 NGK Standard Spark Plugs (part number 4983) suitable for gasoline engines. Made in Japan, these vintage spark plugs have a universal fitment and provide performance enhancement. The manufacturer offers a 1-year warranty for this product, designed with a standard configuration for efficient tuning.
After calling around to different auto parts retailers in town just to learn that they all have to order them, I figured I can do that myself and save me a trip to the store. Thank you for being quick and easy.