Olds 455 Date Codes, A note about Oldsmobile casting dates: Oldsmobiles use Julian date codes.

Olds 455 Date Codes, The date code on this tag (for all years of H/O’s) is designated by a 3 digit code (2 numbers and a letter). These parts should fall within a few weeks prior to the assembly date code stamped into the Fisher Body tag. 1960-75 Oldsmobile engine code decoder reveals the stamp location, engine displacement, horse power, compression ratio, and Carburetor configuration. 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. g. For example: What is the date code for this 455? What is the "4" means? . For originality and number matching authentication Can someone tell me where I can find the chart that explains how to decode the “Date Code” near the distributor engine block? I've got a couple of blocks to decode before posting 1 of them for sale and keep the other. All you will see is a number cast into the part from 1 to 365. The 455 is a member of Oldsmobile's V-8 engine class. The casting numbers on the heads tell you the year, A-J, from 68-70's. flbq, t8ycr7u, o7ho, hs1, gitydo, cdq8, uv, mf6nk, 0qul, owcke,