JOHNNYOLDS442

I know how to tell on the 455 but not the 350
it does have # 6 heads thats all i got so far

JOHNNYOLDS442

Filler tube and block

JOHNNYOLDS442

Block id

stan 65 cutlass

you need the numbers off the pad under #1 plug, it will have some of your vin on it

JOHNNYOLDS442

ok i will see if i can find it

RetroRanger

right here johnny might be hard to see w acceesories

JOHNNYOLDS442

Ok, here is whats on the Pad 3OM226323
my Vin is 33687 cutlass 2 dr and OM226323
my Question now is what does the 3O mean before the m on the pad is that the date?


what i found

JOHNNYOLDS442

thanks, so it is like the 455 pad

joe_padavano

The VIN derivative on the block, trans, and frame is composed of nine of the thirteen characters of the VIN of the car. The first character of the VIN derivative matches the first character of the VIN and the last eight of the VIN derivative match the last eight of the VIN.

The first character of the VIN and VIN derivative is the division. 3 = Oldsmobile.

The fifth character of the VIN and the second character of the VIN derivative is the year. 0 = 1970

The sixth character of the VIN and third character of the VIN derivative is the assembly plant. M = Lansing

The last six of each is the sequential assembly number.

joe_padavano

Every Olds V8 from 1968 to 1990 is stamped exactly the same. Olds did not stamp a VIN derivative prior to the 1968 model year.

BlackGold

Actually, if I remember correctly from what I read in the most recent JWO, Olds stamped what might be termed a VIN derivative on the engine back in the '20s. This really surprised me. Does anyone here have any more information about such "numbers-matching" stamps throughout Oldsmobile history?