block date code 409

[Terry Williams]

Hi
I am new to the forum, and have a 62 409/409
I am trying to figure out the date code on the block it is a 068 block mid year with the x and where the date code is it has markings of CFO, does anyone know what this is
Thanks

 

[64ss409]

Bob has lots of info for us.

http://www.348-409.com/blockcast.html

 

[Dick MacKenzie]

Hi Terry,

I think the "CFO" you're seeing is actually CFD. You may want to read the info on Bob's 348/409 General Information page found here: http://www.348-409.com/general.html. Basically it says :

there were some blocks with CFD cast into them that were supposed to have come from the Central Foundry Division when there was a strike at the Tonowanda plant. Click here to view a sample

The Image:

On these blocks I believe the casting date is still on the back of the block but on the other side near the starter location. I may be wrong about that but if I am someone will correct me.

 

[tripower]

Terry, Welcome aboard. Another WA. member...

 

[oldskydog]

It had nothing to do with any strike. All W blocks and heads were CFD after about april 62.

 

[Terry Williams]

Thank you, to all heads, block, trans, all from June 8 to the 22

 

[63impalass409]

I have a set of 817 340hp heads with the cfd but can not find a date but I know they used those on 63-65 so how can I find out a way to find out what year for sure

 

[oldskydog]

It's a Julian date......digits correspond to the day of the year. No sure way to tell for sure 62 690's from 63 except that 62's would start from sometime in April (I think) and run to the end of year. 63's would run from 1 (January 1) to sometime in sept, (I have the date written down somewhere) when they switched to 583s for production, but 690's were probably continued for service for sometime after that.
817s ran from 63 to 65 so good luck on that. To quote the next president and Phil's favorite politician, "What difference does it make?".

 

[Ronnie Russell]

 

[tripower]

To quote the next president and Phil's favorite politician, "What difference does it make?".

So can we call him Phil Harmonic...

 

[1961BelAir427]