Date-Coded Spark Plug Wire Set for A-Body, B-Body & E-Body 1971 318/340 Engines & C-Body 318 Engine, Date-Coded 3rd Qtr 1970 (3-70). Mopar Authentic Restoration Product - all wires are stamped with date code (same as OEM wires); illustration shown may not show date codes, and is for display purposes only.