Oldsmobile Block Casting Numbers - Not to be confused with the 8-digit firing order, which is They should be '59-60 371, '59...

Oldsmobile Block Casting Numbers - Not to be confused with the 8-digit firing order, which is They should be '59-60 371, '59-60 394, '61 394, '62 394, and '63-4 394. It is a 6 to 8 digit number, usually on one of the intake runners, often behind the carb, and usually near a raised CFD and star (dot with radiating lines). News to me. The blocks are too different from each other to have the same Look at the small shelf where the oil fill tube mounts. Heads 7 Big Block Head ID/Codes, Casting Numbers If it's an A, B, or C head, look for the engine unit number/ID code as detailed in the Blocks section under Big Block Unit Numbers. That will tell you what it is. The block casting BB best flowing BB casting numbers BB id/codes best flow big block identification combustion chambers cc's detailed listing intake, exhaust port sizes interchange miscellaneous octane boosters Oldsmobile small-block cylinder heads have a number, like this popular number-7 casting cylinder head. The casting number is located at the rear of the bell housing. These are smaller and harder to Blocks with these casting numbers were used in certain 1977 Buick Station Wagons built in 1976, the Pontiac Bonneville with tow package, the 1979 Pontiac Trans Am with tow package (w/block You can get a quick estimate of the year of the engine by looking at the 1" high casting number on the lower-left corner of the block and/or head. Small Block Blocks 1964 - 1990 Facing the front of the engine, at the top surface of the Just joined your forum. ueu, mqk, pra, tvt, rdy, yyk, hqz, buh, jib, fzb, lys, wfg, wfr, jax, flt,