Re: 440 Engine block ID

[Bill Watson <wwatson6@xxxxxxx>]

#4006630-440-1   6-9-76

Pretty straight forward - "4006630-440-1" is the casting mold number and 
"6-9-76" is the date the block was cast - June 7, 1976.

However, the "-1" has nothing to do with the internal bores.  As it is 
impossible for one set of molds to produce enough blocks needed for 
production, more than one set is used.  The "-1" is the casting mold 
identifier.  Thus "-8" would be for the 8th casting mold in use, "-5" for 
the 5th, "-4" for the 4th, etc..  In this manner, if any flaws appeared 
during the machining or assembly procedures the engine plant knew exactly 
which casting mold was the culprit.

For the   7T440TFH  :
7 - model yeat - 1977
T - engine plant - Trenton
440 - engine size - 440-cid
T - Truck use
F - GVW - 19,501# to 26,000#
H - Standard 4-barrel carb.

I believe the second letter was for the vehicle GVW.  At least one source I 
came across a few years back claimed that was the case.  An engine for a car 
usually had "PC" instead of the "TF".

This stamping was usually followed by two sets of four digits, although 
sometimes the second set did not have the beginning 0's to fill it out to 
four.

Anything stamped on the right side of the block, just to the rear of the 
engine mount?

Bill
Vancouver, BC



----- Original Message ----- 
From: "Rich Kinsley" <rlkinsley@xxxxxxxxx>
To: <1962to1965mopars@xxxxxxxxxx>
Sent: Saturday, April 17, 2010 8:33 PM
Subject: 440 Engine block ID


> I got a 440 block from George today and we're curious if you wizards can
> tell what it was used in. I gotta think it was probably a truck or
> motorhome??? The casting #4006630-440-1   6-9-76   and stamped very
> lightly on the plate by the head is  7T440TFH  I'm not 100% sure about
> the 440 between the 7T  and  the TFH. The 440 Source guide does say this
> block has the widest webs and the big coolant holes plus the bigger
> motor mount feet. It hasn't been bored either as it is still 4.32" .
> Just curious.
>
> Rich Kinsley '64 Dodge Polara 4dr 318poly w/goodies


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