Quicksilver 84-816608Q68 Spark Plug Wire KitSpark plug wire kit designed for GM-based V8 marine engines (350, 454, 502 CID) with Delco HEI ignition systems from 19932010. Includes eight red wires with boots at the spark plug end, pre-cut to ensure proper length and routing for marine engine layouts. Refer to your service manual for proper installation.Features Fits GM V8 350, 454, and 502 CID marine engines (19932010); For use with Delco HEI ignition systems; Includes 8 red wires with spark plug-end boots; Tailored lengths for correct plug positioning; Built for marine-grade durability, efficiency, and performance; Red WiresFits GM V-8 350, 454, 502 cid engines with Delco HEI ignition (1993 and newer).