SAAC Forum

The Cars => 1968 Shelby GT350/500/500KR => Topic started by: gpm6367 on May 29, 2020, 08:14:07 PM

Title: Identifying a GT 500 powertrain
Post by: gpm6367 on May 29, 2020, 08:14:07 PM
I am looking at a GT500 and trying to identify the powertrain.

According to the former registry the last four digits of the Ford VIN are stamped on the block and trans.

Where?

Does anyone have a photo depicting the locations of the vin?
Title: Re: Identifying a GT 500 powertrain
Post by: davez on May 29, 2020, 08:22:12 PM
Back face of one of the heads facing the firewall. Tough to see in the car, need a mirror. On an auto trans top back of the main body just before the tailshaft housing. Faces the floorplan. Both partial vins only but more than 4 digits.
Title: Re: Identifying a GT 500 powertrain
Post by: 8T03S1425 on May 29, 2020, 08:31:19 PM
Here's a picture of the rear of the LH head that was on the engine in my '68 GT500.

(http://www.saacforum.com/gallery/277-150919144929.jpeg)

It is very difficult to see.

Steve
Title: Re: Identifying a GT 500 powertrain
Post by: gpm6367 on May 29, 2020, 08:37:00 PM
Where is the stamp on a 4 spd?

So it's the rear passenger head that's stamped? Or block near the head?
Title: Re: Identifying a GT 500 powertrain
Post by: davez on May 29, 2020, 08:41:05 PM
It's on the head not the block. Best you can do for the block is confirm a date code
Title: Re: Identifying a GT 500 powertrain
Post by: Bob Gaines on May 29, 2020, 08:48:14 PM
Quote from: gpm6367 on May 29, 2020, 08:37:00 PM
Where is the stamp on a 4 spd?

So it's the rear passenger head that's stamped? Or block near the head?
On four speed it is typically stamped on the protruding pad near where the main case and tail meet. It is seen from the bottom side.
Title: Re: Identifying a GT 500 powertrain
Post by: gpm6367 on May 29, 2020, 08:51:34 PM
Quote from: davez on May 29, 2020, 08:41:05 PM
It's on the head not the block. Best you can do for the block is confirm a date code

The casting number is behind a freeze out plug?

Where is the block's date code?
Title: Re: Identifying a GT 500 powertrain
Post by: Bob Gaines on May 29, 2020, 08:55:04 PM
Quote from: gpm6367 on May 29, 2020, 08:51:34 PM
Quote from: davez on May 29, 2020, 08:41:05 PM
It's on the head not the block. Best you can do for the block is confirm a date code

The casting number is behind a freeze out plug?

Where is the block's date code?
Near where the oil filter adapter bolts.
Title: Re: Identifying a GT 500 powertrain
Post by: J_Speegle on May 29, 2020, 11:32:47 PM
As Bob described


(http://www.concoursmustang.com/forum/gallery/14/6-290520233232.jpeg)
Title: Re: Identifying a GT 500 powertrain
Post by: TLea on May 29, 2020, 11:35:32 PM
Quote from: Bob Gaines on May 29, 2020, 08:48:14 PM
Quote from: gpm6367 on May 29, 2020, 08:37:00 PM
Where is the stamp on a 4 spd?

So it's the rear passenger head that's stamped? Or block near the head?
On four speed it is typically stamped on the protruding pad near where the main case and tail meet. It is seen from the bottom side.
That would be the case on the 67. On 68 New Jersey cars they are on the left upper ear of the transmission right above where it bolts to the bellhousing
Title: Re: Identifying a GT 500 powertrain
Post by: Bob Gaines on May 30, 2020, 12:08:15 AM
Quote from: TLea on May 29, 2020, 11:35:32 PM
Quote from: Bob Gaines on May 29, 2020, 08:48:14 PM
Quote from: gpm6367 on May 29, 2020, 08:37:00 PM
Where is the stamp on a 4 spd?

So it's the rear passenger head that's stamped? Or block near the head?
On four speed it is typically stamped on the protruding pad near where the main case and tail meet. It is seen from the bottom side.
That would be the case on the 67. On 68 New Jersey cars they are on the left upper ear of the transmission right above where it bolts to the bellhousing
+1 .Thanks for the save. I neglected to look at the section and didn't switch gears for 68. :)
Title: Re: Identifying a GT 500 powertrain
Post by: 68stangcjfb on May 30, 2020, 12:19:44 AM
On some GT500s built in a certain time frame, the partial Vin may be stamped on the back of the intake manifold on the driver side. Pictured is an example along with a transmission stamping from the same car this engine and transmission came out of.
Title: Re: Identifying a GT 500 powertrain
Post by: gpm6367 on May 30, 2020, 05:44:58 AM
I'm having a hard time orientating myself to the location of the stamp on the block in that last photo. That is on the back of the head?

Also told that early cars did not have VIN stampings. Does anybody know when the VIN stamp began? This car was has 11/29/67on buck tag and door tag says 12/4/67. Should this vehicle have VIN stamps?
Title: Re: Identifying a GT 500 powertrain
Post by: Coralsnake on May 30, 2020, 07:57:32 AM
Early cars did have VIN stampings. It started with the 1968 model year. I will show you examples if you like.

Stop listening to whomever told you that.

Casting date by oil filter is a good indication, engines could be stamped on intakes, heads or blocks. You will need to check all three.

The transmission stamping is on the left, upper ear of the case. It would not be visible when installed in the car. In the photo the engine would be in the top of the picture. The transmission input shaft is pointing towards the top in photo. The top cover is show (with bolt)
Title: Re: Identifying a GT 500 powertrain
Post by: Coralsnake on May 30, 2020, 08:57:09 AM
A half dozen stampings on 1968 Shelbys with serial numbers below # 500. Now, maybe we can put that fallacy to rest.


(http://www.saacforum.com/gallery/8-300520085330.jpeg)
Title: Re: Identifying a GT 500 powertrain
Post by: Royce Peterson on May 30, 2020, 09:56:03 AM
+1

Quote from: TLea on May 29, 2020, 11:35:32 PM
Quote from: Bob Gaines on May 29, 2020, 08:48:14 PM
Quote from: gpm6367 on May 29, 2020, 08:37:00 PM
Where is the stamp on a 4 spd?

So it's the rear passenger head that's stamped? Or block near the head?
On four speed it is typically stamped on the protruding pad near where the main case and tail meet. It is seen from the bottom side.
That would be the case on the 67. On 68 New Jersey cars they are on the left upper ear of the transmission right above where it bolts to the bellhousing
Title: Re: Identifying a GT 500 powertrain
Post by: Bob Gaines on May 30, 2020, 12:04:45 PM
Quote from: gpm6367 on May 30, 2020, 05:44:58 AM
I'm having a hard time orientating myself to the location of the stamp on the block in that last photo. That is on the back of the head?

Also told that early cars did not have VIN stampings. Does anybody know when the VIN stamp began? This car was has 11/29/67on buck tag and door tag says 12/4/67. Should this vehicle have VIN stamps?
As Coralsnake posted all should have vin stamped in 68 . One of the confusing things is that although the vin was stamped on the driver side head in the rear from the factory , that same head if switched to the passenger side during a valve job or engine rebuild will have the vin stamp now show up on the passenger side front. It happens frequently during engine repair as there is typically no regard to the vin orientation (if the vin stamp can even be seen after painting) by most.
Title: Re: Identifying a GT 500 powertrain
Post by: TLea on May 30, 2020, 02:15:37 PM
Quote from: Bob Gaines on May 30, 2020, 12:08:15 AM
Quote from: TLea on May 29, 2020, 11:35:32 PM
Quote from: Bob Gaines on May 29, 2020, 08:48:14 PM
Quote from: gpm6367 on May 29, 2020, 08:37:00 PM
Where is the stamp on a 4 spd?

So it's the rear passenger head that's stamped? Or block near the head?
On four speed it is typically stamped on the protruding pad near where the main case and tail meet. It is seen from the bottom side.
That would be the case on the 67. On 68 New Jersey cars they are on the left upper ear of the transmission right above where it bolts to the bellhousing
+1 .Thanks for the save. I neglected to look at the section and didn't switch gears for 68. :)
No problem. If I had a nickel for everytime I mixed years..... 🙃
Title: Re: Identifying a GT 500 powertrain
Post by: TLea on May 30, 2020, 02:19:14 PM
Quote from: 68stangcjfb on May 30, 2020, 12:19:44 AM
On some GT500s built in a certain time frame, the partial Vin may be stamped on the back of the intake manifold on the driver side. Pictured is an example along with a transmission stamping from the same car this engine and transmission came out of.
It's cars built in Feb. not many just some
Title: Re: Identifying a GT 500 powertrain
Post by: capecodmustang.com on May 30, 2020, 04:24:35 PM
Quote from: Bob Gaines on May 30, 2020, 12:04:45 PM
Quote from: gpm6367 on May 30, 2020, 05:44:58 AM
I'm having a hard time orientating myself to the location of the stamp on the block in that last photo. That is on the back of the head?

Also told that early cars did not have VIN stampings. Does anybody know when the VIN stamp began? This car was has 11/29/67on buck tag and door tag says 12/4/67. Should this vehicle have VIN stamps?
As Coralsnake posted all should have vin stamped in 68 . One of the confusing things is that although the vin was stamped on the driver side head in the rear from the factory , that same head if switched to the passenger side during a valve job or engine rebuild will have the vin stamp now show up on the passenger side front. It happens frequently during engine repair as there is typically no regard to the vin orientation (if the vin stamp can even be seen after painting) by most.



You're so right Bob...
I purchased a 70 GT 500 SCJ awhile back...

I looked for a VIN on the driver's head and there was none.
The date of the block was off too..
I just about gave up....
However, at the last moment I checked the passenger head and there it was...!

482842


Title: Re: Identifying a GT 500 powertrain
Post by: Bob Gaines on May 30, 2020, 05:40:14 PM
Quote from: capecodmustang.com on May 30, 2020, 04:24:35 PM
Quote from: Bob Gaines on May 30, 2020, 12:04:45 PM
Quote from: gpm6367 on May 30, 2020, 05:44:58 AM
I'm having a hard time orientating myself to the location of the stamp on the block in that last photo. That is on the back of the head?

Also told that early cars did not have VIN stampings. Does anybody know when the VIN stamp began? This car was has 11/29/67on buck tag and door tag says 12/4/67. Should this vehicle have VIN stamps?
As Coralsnake posted all should have vin stamped in 68 . One of the confusing things is that although the vin was stamped on the driver side head in the rear from the factory , that same head if switched to the passenger side during a valve job or engine rebuild will have the vin stamp now show up on the passenger side front. It happens frequently during engine repair as there is typically no regard to the vin orientation (if the vin stamp can even be seen after painting) by most.



You're so right Bob...
I purchased a 70 GT 500 SCJ awhile back...

I looked for a VIN on the driver's head and there was none.
The date of the block was off too..
I just about gave up....
However, at the last moment I checked the passenger head and there it was...!

482842
I hope Ed Meyer reads that.  :D
Title: Re: Identifying a GT 500 powertrain
Post by: gpm6367 on May 30, 2020, 06:43:36 PM
A lot of information.

So the consensus is all 68s should have VIN stamp even if assembled in late 67? I was told it started in calendar year 68. This car was bucked 11/29/67.

The casting numbers and dates on block and heads are consistent with vehicle assembly. I saw no VIN but given what has been said here I really need to closely examine entire motor.

The trans is not original.
Title: Re: Identifying a GT 500 powertrain
Post by: 68stangcjfb on May 30, 2020, 06:49:49 PM
That doesn't just go for Shelby's but all Ford Motor Company vehicles. My November 28th 1967 built Torino 4 door has its original Vin stamped 302 and C4 automatic transmission.
Title: Re: Identifying a GT 500 powertrain
Post by: capecodmustang.com on May 30, 2020, 06:53:20 PM
Quote from: gpm6367 on May 30, 2020, 06:43:36 PM
A lot of information.

So the consensus is all 68s should have VIN stamp even if assembled in late 67? I was told it started in calendar year 68. This car was bucked 11/29/67.

The casting numbers and dates on block and heads are consistent with vehicle assembly. I saw no VIN but given what has been said here I really need to closely examine entire motor.

The trans is not original.


At different times I owned #64 and #66...
Neither had VINS but if I remember the dates were perfect on the engine..

And they were built the same day...
Title: Re: Identifying a GT 500 powertrain
Post by: pbf777 on May 30, 2020, 08:44:47 PM
     We had a customer with a '69 428CJ engine that had V.I.N. stampings at the rear driver's side of the block, and at the rear of both cylinder heads.  The fonts appeared consistent and the engine was stated and was of a condition consistent with not having been monkeyed with previously; that is with the exception of the "machine shop" that the owner chose to rescue his parts from, but unfortunately only after they had ruined one cylinder head.  Upon assembling the engine, with a replacement reasonable date coded but un V.I.N. stamped cylinder head, I chose to position the the remaining cylinder head with the V.I.N. stamping on the driver's side facing rearward.  The customer received the assembly took it home and was determined to have it on the passenger side facing forward, so much so as he returned the engine and I swapped it so.  I stated that I felt this was inconsistent with the norm, but perhaps at least it would provide evidence to the claims that at least some engine work (at least beyond the Krylon.........I mean Dupli-Color application, sorry!) was performed in the restoration.      ::)

     Scott.