today. Just beside where the distributor shaft insets into the rear center area of the engine, I noticed the numeral 3 and what I assume is the corresponding julian numerals 276. Do these numbers combine to show the year and day of manufacture for the engine block (my car is a 70-442)? Thx in advance

 

I would say no. In my experience, the Olds engine blocks, heads, water pump, and so forth, only have up to 3 julian date numbers to show what day of the year the piece was manufactured. In the case of *276* for your '70 4-4-2, that would be the 276th day of 1969 that the block was manufactured.

Randy C.

 

the numeral 3 is above the 276 date code (actually right above the numerals 27)? Does the 3 represent third year that the 455 was manufactured (1968, 1969 & 1970)?

 

 

 

might designate which shift. there are more casting numbers in the bellhousing area,but the trans block the view. dont forget to snap the vin derivitive stamped on the block and trans.

 

I see no pics on my end. If you hit the yellow box that looks like mountains you can download a picture right out of your files. It only took me a few years to figure it out.

 

I doubt it. Most likely it indicates Oldsmobile division (3) The blocks and intakes were investment cast from sand molds, so i doubt it would be the mold number either.

 

 

None of your pictures are coming through

 

 

Hopefully the last time was the charm