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 350 V8 Firing order: 1-8-4-3-6-5-7-2 Distributor rotation: Clockwise
4: Chevrolet-built 267, 305, 350 Firing Order: 1-8-4-3-6-5-7-2 Distributor rotation:
clockwise
5: Chevrolet-built 262 Firing order: 1-6-5-4-3-2 Distributor rotation: clockwise

GM Buick firing order


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