I googled it with no answers found, so I'll ask...

[benlavigne]

Thanks for the great question Jocigar, and great info from everyone.  Probably someone with much more info that me could narrow this switchover date/VIN# even further, but here's the VIN tag from my early 1971 Challenger with SPD August 29th (1970), before the asterisks were started.  And I should add that I am only referring to VIN tags from the Hamtramck plant.

- Wade

Cool, my car is less than 50 cars before yours!

Ben

[Cudino]

Cool, my car is less than 50 cars before yours!

Ben

That's cool Ben!  And not to hijack this thread, but do you know what dealership your Challenger came from? 

The reason I ask is because my car came from Mr Norms.  Mr Norm ordered a large batch of these early cars all at the same time, and in production some were assigned VIN#s very close to each other (for example another Mr Norm Challenger has the very next VIN# to mine).  Being a Mr Norm ordered car is cool on its own, but an even greater benefit is that a lot of their dealership records have been saved, including original window stickers, order forms, etc.  To check, you can run your VIN# by Larry Weiner of Performance West Group in CA.  If your car was a Mr Norm car he may very well have a paperwork folder on your car that you can purchase.

- Wade

[6bblgt]

Wade, Ben's car is a CANADA spec. R/T  ~3,400 ~2,300 builds after your Mr. Norm's R/T  (bad math)

[Cudino]

Oh, OK, thanks 6bblgt.  Worth a shot asking...

- Wade

[benlavigne]

Wade, Ben's car is a CANADA spec. R/T  ~3,400 builds after your Mr. Norm's R/T

6bblgt,
How do you get the 3 400 builds, the VIN's are less than 50 units apart?

Ben

[anlauto]

Wade, Ben's car is a CANADA spec. R/T  ~3,400 builds after your Mr. Norm's R/T

6bblgt,
How do you get the 3 400 builds, the VIN's are less than 50 units apart?

Ben

I'm curious too ?

[benlavigne]

JS23N1B108*** VS. JS23R1B108804

VIN sequential numbers are 47 assigned VINs apart  -  "scheduled" for the same day (829) Saturday, August 29, 1970
(not sure the UAW was working Saturdays) 

broadcast sheet "SEQUENCE NUMBER" are 2,352 vehicles apart  -  HEMI * 005665 VS. 383 * 008***
(I believe this to be each car's "sequence" starting point)

per door sticker dates: HEMI R/T was completed in August & 383 R/T was completed in September

Thanks for the clarification! How many cars did they produce per day? So they'd be rolling down the line according to the Sequence number, not the VIN?

Ben

[benlavigne]

Cool, my car is less than 50 cars before yours!

Ben

That's cool Ben!  And not to hijack this thread, but do you know what dealership your Challenger came from? 

The reason I ask is because my car came from Mr Norms.  Mr Norm ordered a large batch of these early cars all at the same time, and in production some were assigned VIN#s very close to each other (for example another Mr Norm Challenger has the very next VIN# to mine).  Being a Mr Norm ordered car is cool on its own, but an even greater benefit is that a lot of their dealership records have been saved, including original window stickers, order forms, etc.  To check, you can run your VIN# by Larry Weiner of Performance West Group in CA.  If your car was a Mr Norm car he may very well have a paperwork folder on your car that you can purchase.

- Wade

Thanks for the thought Wade, I wish my car had the same kind of pedigree as yours, which I had the pleasure of seeing at MCACN a couple years back... Will you have a car there this year?

Ben

[Cudino]

No sweat Ben, and thanks for the nice comments.  I will be at MCACN again this year, but I'll be dragging out a couple of non-Mopars (egads!).  Will you be attending?  If so please say Hi.

- Wade