Delco HVS V8 Spark Plug Wire Set | United Ignition Wire 217 8mm ignition set fits GM 8 cylinder marine engines with Delco HVS flat cap distributors. Delco HVS V8 marine spark plug wire set 90 degree spark plug boots with straight distributor boots 8mm SSC 100% Silicone wire for ultra low resistance of 270 Ohms per foot Carbon-latex coating for superior EMI/RFI suppression Heavy duty booting used to maintain dielectric properties Stainless steel and brass terminals for longevity and superior conductivity Replaces Mercruiser 84-863656A1 Replaces Crusader RK120018A Replaces Indmar 751106