4x NGK Racing Spark Plug Stock 2817 Nickel Core Tip Standard 0.028in R5673-7

16x NGK Racing Spark Plugs Stock 5657 Nickel w/ V-Groove Tip 0.020in R5674-8

8x NGK Standard Spark Plug Stock 2983 Nickel Core Tip Standard 0.028in CR6HSA

Genuine GM Glow Plug 12725202

8x NGK Racing Spark Plug Stock 3442 Nickel Core Tip Standard 0.020in R5673-9

8x NGK Racing Spark Plug Stock 5034 Nickel Core Tip Standard 0.032in R5674-7

8x NGK Racing Spark Plug Stock 7317 Nickel Core Tip Standard 0.020in R5724-8

8x NGK Racing Spark Plug Stock 2891 Nickel Core Tip Standard 0.032in R5670-7