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GM Buick firing order
GM Buick firing order GM BUICK, OLDSMOBILE, PONTIAC, FULL-SIZE 1975-1990 FIRING ORDERS REPAIR GUIDE 1: Buick-built 231, 252 V6 Engine firing order: 1-6-5-4-3-2 Distributor rotation: Clockwise 2: Olds-built 260, 307, 350, 400, 403, 455 Pontiac-built 265, 301, 350, 400, 455 V8 Engine Firing Order: 1-8-4-3-6-5-7-2 Distributor rotation: Counter-clockwise 3: Buick-built Read more…