Re: Block idenification Marks

[Dave Casey <dcasey@xxxxxxxxxxxxx>]

There should be a letter for each cylinder. The letter indicates a more
precise measurement of the bore. Due to manufacturing tolerances, you had
variances between cylinder bores, so after the blocks were honed, the bores
were mic'ed and the pan rail stamped with a letter indicating the exact
bore. When the motor was to be assembled, they had a pile of pistons, which
had also been mic'ed and sorted according to exact size. Thus the E
cylinders all got pistons from the E pile and so forth. This is the first
I've heard of the letters getting as far as E though.

Dave Casey

----- Original Message -----
From: "Max Wedge Gene" <elukow@xxxxxxxxxxxxx>
To: <1962to1965mopars@xxxxxxxxxx>
Sent: Sunday, March 21, 2004 8:09 PM
Subject: Block idenification Marks


>
> Just acquired a 1966 dated Hemi block still with a 4.25 bore and the deck
height is 10. 727 & 10.732 . After cleaning the block there are letters
stamped into the oil pan rail drivers side E,C,D & D & passenger side E,C,D
& E. I don't recall ever seeing an explanation of what these marks are for.
>
> Any one have an explanation?
>
> Max Wedge Gene
> [Non-text portions of this message have been removed]
>
> ----
> Please address private mail -- mail of interest to only one person --
directly to that person.  I.e., send parts/car transactions and negotiations
as well as other personal messages only to the intended recipient, not to
the Clubhouse public address. This practice will protect your privacy,
reduce the total volume of mail and fine tune the content signal to Mopar
topic.  Thanks!
>
> '62 to '65 Mopar Clubhouse Discussion Guidelines:
> http://www.1962to1965mopar.ornocar.org/mletiq.html.
>
>

----
Please address private mail -- mail of interest to only one person -- directly to that person.  I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic.  Thanks!

'62 to '65 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html. 



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