Find BUICK 3.8L/231 GM V6 Parts and Accessories and get Free Shipping on Orders Over $109 at Summit Racing! More Power in Every Purchase - Join the Summit Rewards Program Today! Vehicle/Engine Search Vehicle/Engine Search Make/Model Search. Engine Size: 3.8L/231. Engine Family: GM V6.. Engine. Filters. Lighting. Motor Oil. Performance Chemicals. Wash & Wax.. Pontiac, Full-Size 1975-1990 through AutoZone Rewards. These diagrams include: Fig. 1: Buick-built 231, 252 V6 Engine firing order: 1-6-5-4-3-2 Distributor rotation: Clockwise; Fig. 2: Olds-built 260, 307, 350, 400, 403, 455 Pontiac-built 265, 301, 350, 400, 455 V8.
A guide to a BUDGET rebuild the 231 V6 3.8L Odd Fire. Believe it or not I rebuilt this engine using used parts from another 1976 231 odd fire engine that I got from my local wrecking yard. These particular engines were made from 1975-1977 and the parts can be interchangeable.. Top left diagram is for the 231 V6 odd fire. Buick introduced an updated version of the 231 that they called the "3800" in '88.. The 3.8L Buick may have come from humble roots, but it's considered to be one of the "most significant V6 pushrod engines ever designed." It's been selected as one of the "ten best engines in the world" by Wards three times and is the.