[Denis]

Sam, my "survivor" 67 RS/SS 350 car is coded similarly, QL0111G.

Here are some other numbers off the car for comparison purposes:

VIN: 124377L139055

Cowl Tag:

01E D15
67-12637 LOS-15899
742-Z A-A
W 2MGR 3SL
4P 5Y

decodes as:
Built 5th week of January
67 Sports coupe w/ custom interior, Van Nuys build
Red custom buckets
Tuxedo black, no vinyl top
Tinted windshield
Powerglide transmission, center console, rear seat speaker
RPO Z23, interior decor; RPO Z22, Rally Sport
SS 350
Deluxe seatbelts
NB: Front and rear bumper guards not shown on cowl tag

Protect-O-Plate:

First row: D AA 124377L139055 C
D: Red interior trim
AA: Tuxedo Black body exterior paint
124377L139055: VIN
C: Carburetor source is Carter

Second row: V0125MU QL0111G P
V0125MU: Flint engine plant, January 25, 350ci/295hp w/ Powerglide
QL0111G: 3.31 open rear axle, January 11, Chevrolet Gear & Axle plant
P: Vehicle build month February, 1967

Third row: T7A28N --4--4-
T7A28N: Toledo plant Powerglide, Model year 67, January 28, night shift
NB: Trans stamped "T7S28N" (identical except month -- stamping error)
--4--4-: AM radio w/ rear speaker (U63/U80), door edge guards.

Numbers and dates off the car:

Radiator: UF
Engine: 7L139055 VOI25MU (January 25, 1967)
Voltage regulator: 1119515 7A (January 67)
Alternator: 1100693 6L30 (November 30, 1966)
Wiper Motor: 5045508
Carburetor: Rochester 4-barrel non-AIR Quadrajet 7027202 A7 (January 1967)
Intake: 3905393
Coil: 290 BR raised letters
Distributor: 1111168 7A18 (January 18, 1967)
Horns: Both dated 7A3 (January 3, 1967)
"82" Chalk mark on firewall behind fender
Windshield: CA (November 1966)
Rear Window: YA (December 1966)
Side mirror: 12-DMI-66 (December 1966)
Right vent window: TA-16 (August 16, 1966)
Left vent window: CA-16 (November 16, 1966)
Left door window: NZ-10 (January 10, 1967)
Left quarter window: NZ-10 (January 10, 1967)
Right door window: TA-10 (August 10, 1966)
Right quarter window: PPG AS2 M20 67 (likely a replacement)
Front seatbelts: All dated 52E66 (Week 52, 1966), model #127 NB: No seatbelt hooks on console
Rear seatbelts: All dated 49E66 (Week 49, 1966), model #122
Transmission: T7S28N (Turboglide, Model year 67, November 28, night shift)
Starter: 1108338 7A6 (January 6, 1967)
Rear axle: QL0111G (3.31 open, January 11 1967) NB: Radius rod bracket but no radius rod

-d