SAAC Forum

The Cars => 1967 Shelby GT350/500 => Topic started by: mat31 on September 07, 2025, 08:44:02 AM

Title: 67 gt500 with factory 390ci
Post by: mat31 on September 07, 2025, 08:44:02 AM
Hello everybody,

Reading the registry book, it' written somewhere that some cars had been équiped with 390ci engine because 428ci was temporarily unavailable.

Have we identified the concerned cars?
Title: Re: 67 gt500 with factory 390ci
Post by: Coralsnake on September 07, 2025, 08:52:00 AM
Never happened
Title: Re: 67 gt500 with factory 390ci
Post by: Coralsnake on September 07, 2025, 09:22:18 AM
These stories are likely from a misunderstanding of engine codes and how engines were built.

Ford would not substitute motors that were purpose built for specific applications.
Title: Re: 67 gt500 with factory 390ci
Post by: Bob Gaines on September 07, 2025, 10:21:55 AM
Quote from: Coralsnake on September 07, 2025, 09:22:18 AMThese stories are likely from a misunderstanding of engine codes and how engines were built.

Ford would not substitute motors that were purpose built for specific applications.

listen to the man.😉
Title: Re: 67 gt500 with factory 390ci
Post by: FL SAAC on September 07, 2025, 11:27:02 AM
This is how all fairy tales begin...

Once upon a time it had a 428, it got blown up. Next best thing was another boat anchor in went....the 390 motor.

Looks the same but they are not

The End !

Title: Re: 67 gt500 with factory 390ci
Post by: Coralsnake on September 07, 2025, 12:18:20 PM
I do recall a notation in a previous registry that stated the road test of the car was not very good. It was theorized a 390 was in the car to explain the varied performance.

Obviously, there are many other possible explanations for the poor performance.

I believe the big block Cobras did substitute some motors, but that was an entirely different matter
Title: Re: 67 gt500 with factory 390ci
Post by: oldcanuck on September 07, 2025, 09:03:17 PM
Quote from: Coralsnake on September 07, 2025, 12:18:20 PMI believe the big block Cobras did substitute some motors, but that was an entirely different matter

As I recall the 390 Cobra SAI experiment for the Bahamas Speed Week was affectionately referred to as "The Turd". I would assume that reference speaks volumes.
Title: Re: 67 gt500 with factory 390ci
Post by: J_Speegle on September 08, 2025, 02:59:04 AM
Another one that will never die.


A moment on the lips – In due course we forget.

A moment in print – forever repeated.

Title: Re: 67 gt500 with factory 390ci
Post by: mat31 on September 08, 2025, 05:44:23 PM
Take a look at registry 4th édition 2011 page 792
Title: Re: 67 gt500 with factory 390ci
Post by: J_Speegle on September 08, 2025, 05:49:07 PM
Don't think any one suggested that it was in print just if it is accepted as correct in 2025.

Sure we could dedicate a thread or many with all the things that were thought correct at the time only to be discovered not so correct years later. Can think of a half dozen off the top of my head "KD" = Knock down when written on radiator supports comes to mind quickly for just one more that could be included in a list.

Or the number of 1966 Convertibles....

Not picking on the Registry or the great efforts of others we all have learned a lot over the decades but as mentioned those mistakes or part true statements live on in print and come back to visit us from time to time.
Title: Re: 67 gt500 with factory 390ci
Post by: Coralsnake on September 08, 2025, 05:53:19 PM
Or "318" KR convertibles! Not correct.

If you had to keep track of every detail of 15,000 cars, I'm sure some errors would occur.

😀