Coil: Ignition HEI '74-94 Pont/Olds V8 HEI White/B/R - GMThis is for Pontiac & Olds V8 (and later 80's Corvettes ONLY w CHEV V8 with) WHITE, BLACK & RED wire.. BEST TO CHECK THE THREE WIRE COLOURS BEFORE ORDERING FROM ANYWHERE This is a genuine GM USA supplied replacement part for Olds and Pontiac V8 pre 1982 era & later 80's early 90's Corvettes where used.. In this case the Coil is located in the distributor sap but note the colours of the 3 wires coming out of it & into the top of the dissy cap they MUST