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Engine date stamp
#1
Well I found my engine date stamp on the right side front just outside the timing cover.

[Image: blockdatestamp.jpg]

1965 D Code
[Image: 64-dcode-200x83.jpg]
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#2
1970 if i dont mistake on the letter...



Damián Cool

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#3
What do you think open or closed chambered?

1965 D Code
[Image: 64-dcode-200x83.jpg]
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#4
Not a clue!!! jeje... but wait till the guys read this and they´ll know how to answer that!



Damián Cool

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#5
I believe it decodes as June 1, 1970. The J may be the character used by the assembler, I'm not sure. Chuck
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#6
Since your Mustang is a 1973, I find it unusual that it would be date stamped in 1970...could be, mine you, but I just find it unusual. The block date code should be found under the rear of the right cylinder bank. It will be right below the block casting number (probably D2AE-CA in your case) and will be a four (4) alphanumeric number

As to the heads, the best way short of taking a head off is to check the casting number on the heads. With that number, we can tell you whether it is open chamber or close (quench) chamber.

Hope this helps.

BT

Do the RIGHT thing.
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#7
cobra3073;43920 Wrote:As to the heads, the best way short of taking a head off is to check the casting number on the heads. With that number, we can tell you whether it is open chamber or close (quench) chamber.

Where is that casting number on the heads again?
I will probably need to borrow a flexible fiberoptic scope from
work to read it though.

mike

[Image: 1_11_11_13_11_50_27.png]
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#8
Looks to be right.

0=70
F=June
1=1st
J=Inspector's code

1965 D Code
[Image: 64-dcode-200x83.jpg]
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#9
goodnigh;43924 Wrote:
cobra3073;43920 Wrote:As to the heads, the best way short of taking a head off is to check the casting number on the heads. With that number, we can tell you whether it is open chamber or close (quench) chamber.

Where is that casting number on the heads again?
I will probably need to borrow a flexible fiberoptic scope from
work to read it though.

mike
The casting number for the 351C head should be found under the Intake Port. If it is still on the block, you may be able to see it with a mirror.

BT

Detector;43929 Wrote:Looks to be right.

0=70
F=June
1=1st
J=Inspector's code
Again, I am PRETTY sure that code is not what you seem to be saying that it is. Verification for the casting date of the block (if that is what you are speaking of) can be determined by checking the code on the block (See my previous post)...just a suggestionSmile.

BT


Do the RIGHT thing.
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#10
I was going by a reference from http://www.hammar.dyndns.org/~djhamma/datecode.htm

It says a 4 digit block date code would be:

Example: 6B14Q

"6" = 1966
"B" = Feb
"14" = Date
"Q" = Inspector's Code Letter (A-Z)

The way I thought it worked was the block CAST code was the cast ID/design/part and the date the cast was um... cast. I.E. my block cast numbers are D0AE-L <- cast design ID, and a cast date code of 0E22(May 22nd 1970) which is the date the cast was made. The stamped date code is stamped when the engine is put together/assembled. In my case it has the STAMPED date code of 0F1J which should indicate my engine was manufactured June 1st 1970 and inspected by Inspector J

If I got it wrong someone please correct me.

Here is my block CAST numbers.

[Image: 73blockcastnumber.jpg]

1965 D Code
[Image: 64-dcode-200x83.jpg]
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