383 engine decode help ?

[jprather]

I'm not well versed at this, can anyone help me decode ??

block is 2468130-10 I know the 2468130 is 383 block, what is the -10 on the end? under that it is stamped D N and the clock mark shows pointing to the 11 mark ?

thanks !

 

[rickseeman]

The -10 is the patterns that the block was made from. D N is day or night and there is a pointer to which it is. And it was made at 11 o'clock.

 

[jprather]

Thank you!

 

[dadsbee]

-10 is just the sand casting "cavity" number. SO when QC snags something bad they know what -# to toss aside.

 

[jprather]

How do I tell what year it is?

 

[rickseeman]

By the stamping on the machined pad up front. Like F 383 would be a from a 1970 car

 

[rickseeman]

There is a casting date on the drivers side of the block

 

[dadsbee]

By the stamping on the machined pad up front. Like F 383 would be a from a 1970 car

Yep, 383 stamp pad is below the distributor, not top on the valley pan rail area like a 440.