Can you post a picture of the VIN tag? (Next to the battery — riveted to the engine compartment perimeter frame?
"06B" on the body tag would indicate a body production in the second week of June 1966 — near the end of the 1966 model year production.
The correct body tag on a 1966 Air Conditioned Corvair should include an Accessory Code:
2E.
1966 ACC Codes
The Letters are listed in groups. Letters following a number is in that group. The code letters are listed in the order they would appear. Some letters are in more than one group
Most 1965 codes carried over to 1966 unchanged. (New std equip eliminated some codes)
First Group ( no numeric indicator)
E = RPO A01 Tinted Glass ( Soft Ray glass in all windows)
D = RPO C06 Power Top (Manual top standard, no indicator)
W = RPO A02 Tinted Windshield only
O = Two tone paint trimpiece ( sedans only)
L = folding rear seat (500 series only)
2 = Second Group
M = RPO M35 Powerglide Automatic
E = RPO C64 Air Conditioning
R = RPO U80 Rear speaker
S = RPO U73 Rear ant.
T = RPO U75 Power Rear antenna
H = Heater delete
3 = Third Group
A = Rear armrest (500 series sedans)
4 = Fourth Group
O = RPO L87 Turbo engine
F = Remote outside mirror / updated CC group (lighting grp, door guards)
5 = Fifth Group
Y = RPO A49 Deluxe Seatbelts ( Stainless Steel Push-button Buckles)
O = Seatbelt delete? ( No cars found with this code, but may carry over from 65)
? = Shoulder harness
*Standard seatbelts, old CC group and padded dash are now standard. So C in group three, P in group four and W in group five no longer listed. Also 4spd transmission no longer listed, with the introduction of the new Saginaw transmission. Rear seatbelts are also now STD. Willow Run cars had the ACC codes all on one line.
AirVair Group wrote:...the C-64 option became available on the top of the line Corsa model in its final year.
But time was working against our wonder car - no amount of glowing reports in the motoring press would turn the tide. Just 103,743 Corvairs were built in what many believe to be Corvairs finest year, but again A/C percentage was up - this time to 4.61% - adding another 4,780 air 'Vairs. This brings up the subject of Rare Corvairs - The Air 'Vair fan has one of the rarest - only about 150 were Corsas...
https://www.corvair.org/chapters/airvairs/
Based on the information you provided, the VIN should be
107676W187906
There are body stamped hidden VIN numbers on the car body that should match your VIN tag in the engine compartment. The following link will show you how to find the hidden VIN...
Hidden vin locations!
viewtopic.php?f=51&t=3000
Below is your engine serial number…-
T0207RR
T = Tonawanda, New York (GM Tonawanda Engine Plant)
http://media.gm.com/media/us/en/gm/comp ... wanda.html
0207 = Engine manufacturing date (month and date). February 7th.
RR = 1966 Only — 140 hp 164 CID with Manual Transmission and Air Conditioning (Corvair Corsa Only)
With an engine production date in early February and a body production date (based on the questionable body tag) in early June, you might question an engine sitting in the warehouse most of February, March, April and May until it was needed. However, the engine serial number is a very rare 1966 only Corsa only engine for an air conditioned optioned 1966 Corsa. Those months might have passed in 1966 before a customer placed an order for an air conditioned 140 hp 1966 Corsa convertible!
You could have a Corsa clone with the correct Corsa instrument panel, trim, and engine mated to a LM convertible body to reproduce a 1966 air conditioned Corsa. Since LM convertible bodies can rust out beyond salvation it is conceivable that an owner wanted to save the life of a rare A/C Corsa by transplanting all of the interior, engine, and trim components to another body. The hidden VIN may tell the tale.