Clock Date Stamp

[Paul S.]

What does a stamp of 433 on a clock mean?

[Harry S.]

Re: Clock Date Stamp

What year car?

[Tom H.]

Re: Clock Date Stamp

Welcome to the NCRS board Paul !!

You mean a Saginaw casting clock ??

Here's how to read one.

On some Saginaw blocks, intakes and exhausts a "clock" was cast into the block. The clock is a circle of 10 dots, one dot for each hour of a shift (usually 10 hour shifts). An arrow points to the beginning of the shift an another dot outside the circle indicates what time of day the cast part was made.

I have lso read the screw in the center indicated the shift. A flat head screw was first shift and a round head was second.

[Paul S.]

Re: Clock Date Stamp

1966, the clock has a stamp of 433 (black ink stamp) on the back of the clock. Wondering if it means April 3, 1963???

[Tom H.]

Re: Clock Date Stamp

Wow, I was way out in left field on this one. I thought you were talking about casting clocks. Sorry.

[Paul S.]

Re: Clock Date Stamp

This stamp is located on the back of the time clock on my 66 coupe. I don't know if a stamp of 433 means April 3, 1963???

[Harry S.]

Re: Clock Date Stamp

The 63 clock is unique to 63. The 64 clock is unique to 64. So it's probably not a 63 clock unless the center of the clock is polished aluminum.

Can you post a picture of front and back?

[Paul S.]

Re: Clock Date Stamp

It is a traditional looking clock for 1966 and I just re-installed it last night so posting a pic is not going to be easy. I was just trying to find out what the ink stamp meant?

[Wayne M.]

Re: Clock Date Stamp

It is a traditional looking clock for 1966 and I just re-installed it last night so posting a pic is not going to be easy. I was just trying to find out what the ink stamp meant?

On the back of the clock in my late '65 (S-body trim tag dated 30 July), the ink stamp is "205". I always thought it was a Julian-dating system, as this translates to July 24th.

[Harry S.]

Re: Clock Date Stamp

Wayne, I have 143 on the back of my 63 clock. Still can't figure that out.

Is it Julian 143 or Jan 4, 63????

433, no such Julian in 1966? Hopefully someone else will chime-in!

[Jack H.]

Re: Clock Date Stamp

How about the 14th week of 1963 for the '143' and the 43rd week of 1963 or 1973 for the '433'???

[Harry S.]

Re: Clock Date Stamp

Jack, I like the 143 but the 433 doesn't work for a 66 clock.

[Michael W.]

Re: Clock Date Stamp

Maybe they're experimental digital clocks accidentally installed facing the wrong way.

[Scott S.]

Re: Clock Date Stamp

The clock from the '67 I'm restoring was ink-stamped "210 6", which I understood to mean the 210th day of 1966 (car has a Jan. 11, 1967 build date). For a 1963 clock, Dobbins' Fact Book shows the ink-stamp date format as "Nov. 62" in his example on p. 317.

I don't know how "433" should be interpreted.

[Ronald L.]

Re: Clock Date Stamp

My April 66 car has 0476, which I saw somewhere meant 47th day of 66 which would be right on. Feb 16, 1966 was a Wednesday.