What means B production???

Jerry, generally speaking, these were race car classes designated by the SCCA way back in the day. For producation classes, it ranged from 'A' down to 'H' where A Production were the fastest and H Production were the slowest. Examples: Corvettes, Mustangs, Camaros were A Prod, MG's, Alfa's, Datun's were in the middle somewhere and Sprites, Mini's were in 'H'. Different engine sizes within a make/model either bumped you up or down a class.

Hope this helps somewhat.

 

Jerry, those details can only be found in the SCCA GCR (General Competition Regulations) from that era. At the time, an R model was probably accepted as a production model and usually what happens, over time, is a tweaking of the regs to 'balance' out a particular class. A case in point would be Lotus. Whatever class they were first put in, it was discovered, over a period of a couple years, that they were awfully fast and the SCCA either eliminated the car and bumped them up a class. I don't know if this happened with the Shelbys or not. We need someone who ran SCCA races from back them to chime in here.

 

Jerry,

gjz30075 is spot on as far as the origin - SCCA had many classes and I must admit that my memory is not good enough to give you an explicit answer, however, I can give you some examples.

I have a 66 GT-350 (2021) that I purchased in Miami back in 74, it was an active B-Production SCCA racecar which I went on to take through Driver's school at Bridgehampton. A similar mustang (289) in notchback configuration ran in the A/Sedan class. Smallblock corvettes were generally B/Prod while the Bigblocks and 427 Cobras were A/Prod. I was a mechanic on an MG midget which ran F/Production.

The SCCA competition rules at the time defined the classes and it changed over time - much the same as NHRA rules did with the Drag classes.

Hope that helped a bit.

j

 

In 1965 and 66 I was a pit crew (gopher) guy on an SCCA team that raced on the east coast. IIRC...
A Production
all big block corvettes and fuel injected 327cu inch vettes
all cobras 427's and 289's
924 porshes (in 2 years I only saw 2)
Griffiths (TVR with cobra motor)
all the super exotic enzo type stuff..(never saw any of them)
B Production
*** the GT 350 ****
carburated 327 corvettes and fuel injected 283's
the Sunbeam Tiger.. (later moved to C production)
XKE's (also moved later to C)
C production
some kind of Porshe-- (don't remember.. I hate porshes)
Lotus super 7 ???
Morgan plus four
D production (my world)
Jag XK 120;s 140's 150's ---Yay!!
Tr. 4's (BOOOO!!)
MGB's
Yenko stingers (clapped out corvairs)
Turner GT's
Daimler SP 250?? (tiny little hemi V8..very cool..)
Some kind of 911 Porshe
6 cyl Austin Healy's (3000's 100-6's)...not positive on this.
This is as best as I can remember.. It was a great experience
jimbo

 

Jerry,

You might want to start by going over the SAAC Registry spec's - the R model Shelby's were designed to race in the SCCA venue. There were a certain number needed to be made to be considered a "Production" class vehicle. So I believe (IMHO) that the "truest" replica would be the closest to what Shelby produced, and not what got modified during the racing seasons (see below under racing damage).

As far as my car goes, no, all pictures were lost during a divorce
(at least I kept the car)

Racing damage to the car was limited to a RR quarter when the previous owner put it into the wall backwards at Daytona and the air-chisel opening up of the radiator support for getting more air into a larger radiator (though the gutting of the interior might qualify as well). I have since redone most of the chassis stuff, but not the interior yet.

Good luck!

jim