Author Topic: Identifying a GT 500 powertrain  (Read 4715 times)

gpm6367

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Identifying a GT 500 powertrain
« 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?

davez

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Re: Identifying a GT 500 powertrain
« Reply #1 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.
« Last Edit: May 29, 2020, 08:23:54 PM by davez »

8T03S1425

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Re: Identifying a GT 500 powertrain
« Reply #2 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.



It is very difficult to see.

Steve
I have owned 8T03S-01425 since 06/76.
I owned 6S2295 in 1973 & ‘74.

gpm6367

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Re: Identifying a GT 500 powertrain
« Reply #3 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?

davez

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Re: Identifying a GT 500 powertrain
« Reply #4 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

Bob Gaines

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Re: Identifying a GT 500 powertrain
« Reply #5 on: May 29, 2020, 08:48:14 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.
Bob Gaines,Shelby Enthusiast, Shelby Collector , Shelby Concours judge SAAC,MCA,Mid America Shelby

gpm6367

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Re: Identifying a GT 500 powertrain
« Reply #6 on: May 29, 2020, 08:51:34 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?

Bob Gaines

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Re: Identifying a GT 500 powertrain
« Reply #7 on: May 29, 2020, 08:55:04 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.
Bob Gaines,Shelby Enthusiast, Shelby Collector , Shelby Concours judge SAAC,MCA,Mid America Shelby

J_Speegle

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Re: Identifying a GT 500 powertrain
« Reply #8 on: May 29, 2020, 11:32:47 PM »
As Bob described



Jeff Speegle- Mustang & Shelby detail collector, ConcoursMustang.com mentor :) and Judge

TLea

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Re: Identifying a GT 500 powertrain
« Reply #9 on: May 29, 2020, 11:35:32 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

Bob Gaines

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Re: Identifying a GT 500 powertrain
« Reply #10 on: May 30, 2020, 12:08:15 AM »
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. :)
Bob Gaines,Shelby Enthusiast, Shelby Collector , Shelby Concours judge SAAC,MCA,Mid America Shelby

68stangcjfb

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Re: Identifying a GT 500 powertrain
« Reply #11 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.
« Last Edit: May 30, 2020, 12:23:10 AM by 68stangcjfb »
68 1/2 CJ Mustang GT FB auto 3.91s 68 1/2 CJ Torino GT FB 3.91s 60 Thunderbird 64 Falcon Sprint conv. 4Spd 65 Falcon Sedan Delivery 67 Fairlane 500 SW 428 4Spd, 68 Torino 4dr 95 Thunderbird SC. 89 F250 Supercab 2wd, 98 Mustang conv. 99 Jeep Cherokee 2002 Thunderbird. 96 Harley FLSTN Heritage Special

gpm6367

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Re: Identifying a GT 500 powertrain
« Reply #12 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?

Coralsnake

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Re: Identifying a GT 500 powertrain
« Reply #13 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)

Coralsnake

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Re: Identifying a GT 500 powertrain
« Reply #14 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.


« Last Edit: May 30, 2020, 09:19:23 AM by Coralsnake »