Best Seller | 1978-1983 Plymouth Sapporo Spark Plug Set - Autopart Premium Plymouth Sapporo Spark Plug Set. Brand: Autopart Premium. Fits Years: 1978, 1979, 1980, 1981, 1982, 1983, 78, 79, 80, 81, 82, 83. Spark Plug Set -- Gap 0.042 inch; 4x Iridium and Platinum Spark Plugs 4 Pcs Iridium & Platinum Spark Plugs for Chevy Nova... ... more 1978-1983 Plymouth Sapporo Spark Plug Set - Autopart Premium Plymouth Sapporo Spark Plug Set. Brand: Autopart Premium. Fits Years: 1978, 1979, 1980, 1981, 1982, 1983, 78, 79, 80, 81, 82, 83. Spark Plug Set -- Gap 0.042 inch; 4x Iridium and Platinum Spark Plugs 4 Pcs Iridium & Platinum Spark Plugs for Chevy Nova... Partsgeek.com | | $27.95 FREE shipping go to store |