Check the listing for details. 1971 Mopar Date Coded Spark Plug Wire Set Stamped 1Q-71 - 383/440. Condition: New. Listed at 87.99 USD. Exact reproduction spark plug wire sets are manufactured to original specifications and are correct in every aspect: wire type and length color terminals boot angle and shape script and braiding (where applicable). This reproduction set are identic al to the spark plug wire as they would have appeared on the vehicle when it shipped from the factory and are designed to look fit and perform exactly as original. Each wire includes the original style lettering with the wording Chrysler Corporation Ele ctronic Suppression. All wires are date coded based on the production quarter of the vehicle.Note: These plug wires are not designed for use with aftermarket headers or aftermarket manifolds. Wiring may be used with other manifold s or headers but are not guaranteed to fit.