I have a 66 "C" code hardtop that I'm putting a four barrel onto. Though the
car calls for a two barrel, I want to keep the numbers and date codes on the
new parts correct. By the way, the car was made in San Jose, so it has the
Termactor system on it. I have found a '66 manifold with a casting code of
C6OE-9425-B and a date stamp of 6J19 which translates to Sept. 19th 1966. My
question is this. Shouldn't a September date code be for the following
production year? It seems really late in the year to be casting large engine
parts for a year that is done. The '67s should have been in production then.
Since my car has an Oct. 11th 1965 sell date, (and I know this because my
father bought the car new off of a show room floor in '65) Does that mean I
need a date stamp of 5J19?
Paul
I have found a '66 manifold with a casting code of
> C6OE-9425-B and a date stamp of 6J19 which translates to Sept. 19th 1966. My
> question is this. Shouldn't a September date code be for the following
[quoted text clipped - 3 lines]
> father bought the car new off of a show room floor in '65) Does that mean I
> need a date stamp of 5J19?
A car sold new on October 11, 1965, should have no date codes later
than about late August 1965. But if your dad was the original owner
and he's sure that the manifolds were never changed, what are ya gonna
do? All kinds of anomalies could happen with these cars. It could be
that on September 9, 1965, old Rufus at the foundry put the wrong year
digit in the mold before they started pouring the iron that day. At
the time nobody really gave a s**t, no one had any idea such an anomaly
would ever matter to anyone, and life went on. As another example:
Laurie S. of this NG, who is the original owner of a '68 coupe, gets
grief at every judging because her dealer put a square bezel radio
antenna on her car, and the MCA judges insist that nothing but round
ones were ever used.
180 Out
Paul Garza - 16 May 2005 20:24 GMT
No...I'm looking to buy a part with that date code. My question was, when
did they stop making parts for the '66? What month in 1966 did they switch
over to the '67 stamp?
> I have found a '66 manifold with a casting code of
>> C6OE-9425-B and a date stamp of 6J19 which translates to Sept. 19th
[quoted text clipped - 25 lines]
>
> 180 Out
Dinsdale - 16 May 2005 23:04 GMT
>No...I'm looking to buy a part with that date code. My question was, when
>did they stop making parts for the '66? What month in 1966 did they switch
>over to the '67 stamp?
My guess is they went to the 67 date stamp in calendar year 67.
I think a date stamp has more to do with when it was made and not what
model year car it was going on.
In case a bad batch is discovered, they'd want to know how to ID which
units were made during a specific day...some date stamps even specify
which shift it was.
DP
Pics of the cars:
http://tinyurl.com/d2q9u
66 6F HCS - 16 May 2005 23:35 GMT
>>No...I'm looking to buy a part with that date code. My question was, when
>>did they stop making parts for the '66? What month in 1966 did they switch
[quoted text clipped - 3 lines]
> I think a date stamp has more to do with when it was made and not what
> model year car it was going on.
Exactly correct. The date code is the date the part was made, including
year, month, and day. To get a correct date coded part, look for a date code
from ~1 month before the build date of the vehicle.

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Scott W.
'66 HCS Mustang 289
'68 Ranchero 500 302
'69 Mustang Sportsroof 351W
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