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  Is Engine/Tranny Original Or Not???

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Author Topic:   Is Engine/Tranny Original Or Not???
Boss Hoss
Gearhead

Posts: 203
From: Georgia
Registered: Mar 2001

posted 04-13-2001 06:39 PM     Click Here to See the Profile for Boss Hoss   Click Here to Email Boss Hoss     Edit/Delete Message   Reply w/Quote
This is something that has been bugging me for a long time, and I figure that if anybody would know the answer to this question, YOU FOLKS WOULD!

According to the plate on the driver's side door, my 1965 Mustang has a build date of May 19, 1965. I feel like my car was built fairly LATE in 1965, since they would had to have started building 1966 models very soon after May 19 in order to be able to fill orders for 1966 cars.

My transmission has a "C6" part number, and my engine's intake manifold also has a "C6" part number.

Is it possible that they could have started the 1966 model year soon enough after my car was built, that my car could have received 1966 parts when it was built?

Please say yes...

*andy* ([email protected])

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mellowyellow
Gearhead

Posts: 4608
From: So. Fl.
Registered: Aug 2000

posted 04-13-2001 07:17 PM     Click Here to See the Profile for mellowyellow     Edit/Delete Message   Reply w/Quote
You know, anything is possible on those lines. Being that it is a late car, it could be possible. It would be interesting to know the date code on the engine. That would probably answer your question.

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Bob429
Gearhead

Posts: 289
From: Watervliet,MI,USA
Registered: Jun 99

posted 04-13-2001 07:29 PM     Click Here to See the Profile for Bob429   Click Here to Email Bob429     Edit/Delete Message   Reply w/Quote
Along with the casting number there should
be a date code reading something like (Example) 5C20.
5= 65 year C=march 20 the day. IT would look like a tag with two screws except it is cast into the part. It may help you to date your engine .

------------------
Bob
Member#39
71 J code
429 SCJ-R Sportsroof
C6 4:11

[This message has been edited by Bob429 (edited 04-13-2001).]

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Boss Hoss
Gearhead

Posts: 203
From: Georgia
Registered: Mar 2001

posted 04-13-2001 07:50 PM     Click Here to See the Profile for Boss Hoss   Click Here to Email Boss Hoss     Edit/Delete Message   Reply w/Quote
Where would the date code be on the engine? Is it next to the part number, down by the starter?

*andy* ([email protected])

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kcode
Gearhead

Posts: 2170
From: alvaton,ky,usa Suburb of Bowling Green, M&M #79, MCA #29208
Registered: Jun 99

posted 04-13-2001 09:58 PM     Click Here to See the Profile for kcode   Click Here to Email kcode     Edit/Delete Message   Reply w/Quote
Andy,
Assuming that your motor is a 289, on the drivers side of the engine block on the head mounting surface at the front of the block, there is a machined surface that has a date pin stamped on it. This is the motor assembly date. The C6 casting numbers on a 65 are possible. Then the possibility that your motor has been changed is also there. Alot can happen over 36 years, unless you bought the car new or know its complete history,

Mike

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Boss Hoss
Gearhead

Posts: 203
From: Georgia
Registered: Mar 2001

posted 04-14-2001 07:38 AM     Click Here to See the Profile for Boss Hoss   Click Here to Email Boss Hoss     Edit/Delete Message   Reply w/Quote
Mike,
I don't recall seeing this machined surface you are talking about. Is the motor assembly date visible with the head still on the engine, or will I have to remove the head?

*andy* ([email protected])

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Rory McNeil
Gearhead

Posts: 712
From: Surrey, B.C. Canada
Registered: Nov 2000

posted 04-15-2001 12:30 AM     Click Here to See the Profile for Rory McNeil   Click Here to Email Rory McNeil     Edit/Delete Message   Reply w/Quote
The location I beleive Mike is talking about is on the water pump boss where the timing cover meets the block. with any grime cleaned off should be readily visable with the heads on.

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Moneymaker
Administrator

Posts: 13182
From: Lyons, IL, USA
Registered: May 99

posted 04-15-2001 11:19 AM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
They built the 65 models through August of 65. I have never seen a bonified 65 with ANY C-6 numbers on it. I would say that you have an engine and transmission transplant.

------------------
Alex Denysenko Co-Administrator and Moderator NHRA/IHRA/SRA member
Fleet of FoMoCo products
Moneymaker Bio
US Class Nationals link

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