C1 - 1953-1962
C2 - 1963-1967
C3 - 1968-19821966 Corvette
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The 1966 Chevrolet Corvette Stingray introduced the 427 cubic-inch engine. 1966 Corvettes with these engines also came with a special bubble hood to accommodate the 427 cubic-inch engines. Both of the 427 cubic-inch engines were originally marketed as bigger horsepower engines. The 425 horsepower version was originally specified at 450 horsepower and the 390 horsepower version was originally rated at 400 horsepower. No changes to the actual engines was made but the literature and badging was changed to the lower horsepower ratings.
The side vents on the coupe disappeared this year. Backup lights were now a standard item and were incorporated into the existing tail lights. Holley carburetors which were on some optional engines before are now standard on all engines. Seats were updated to decrease wear and tear. The knock-off cast aluminum wheels were still available although the center cap now had a dull finish.
Early big-block Corvette (around October and #288) hood hinge is on the passenger
side of the car.
Late
big-block Corvette hood hinge is on the driver side.
A radio was optional. When no radio was ordered the panel was left blank.
Headrests were optional for the first time and the interior door pulls are bright metal. The headliner of the 1966 Corvette is foam and vinyl, an upgrade from the fiberboard headliner previously used. All 1965-1967 396/427 rocker arm covers were painted orange except for the 16 L89s in 1967. The finned Corvette rocker arm covers had a flaw in the casting in mid-1966 resulting in a parting line through the letter "o" in Corvette. The same flaw continued into the early 1967 model year.
1966 total Corvettes built - 27,720
1966 Fastback coupes - 9,958
1967 Convertibles - 17,762
| Corvettes Engines | 27,720 | Percentage |
| RPO L36 - 390-hp engine | 5,116 | 18.46 |
| RPO L72 - 425-hp engine | 5,258 | 18.97 |
| RPO L79 - 350-hp engine | 7,591 | 27.38 |
| base 300-hp engine | 9,755 | 35.19 |
| Serial Numbers | |
| Corvette | 194x76S100001-194x76S127720 |
| Coupe is body style 37 and convertible is body
style 67 Note VIN format change for 1967. The model year is now the 5th character of the VIN and the body style is represented by the 3rd and 4th characters |
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Engine Identification
| Position | Character(s) | Description |
| 1 | F or T | Flint, MI. or Tonawanda, N.Y. engine assembly plant |
| 2 to 5 | 1025 | Engine assembly date (month/day) |
| 6 and 7 | Code | HD - 327-cid 350-hp, manual transmission, 4-bbl carburetor, 11.0:1 cr, A.I.R. HT - 327-cid 350-hp, manual transmission, 4-bbl carburetor, 11.0:1 cr KH - 327-cid 350-hp, manual transmission, 4-bbl carburetor, 11.0:1 cr, A.C., A.I.R. IK - 427-cid 425-hp, M22 manual transmission, 4-bbl carburetor, 11.0:1 cr IP - 427-cid 450/425-hp, manual transmission, 4-bbl carburetor, 11.0:1 cr |
| A.C. | Air Conditioning | |
| A.I.R. | Air Injection Reactor |
Engine Specifications - 327 engines
| Item | Base | RPO L79 |
| Displacement | 327 cid | 327 cid |
| Bore & Stroke | 4.00" x 3.25" | 4.00" x 3.25" |
| Compression Ratio | 10.25:1 | 11.0:1 |
| Advertised Horsepower | 300 hp @ 5000 rpm | 350 hp @ 5800 rpm |
| Torque | 360 lb-ft @ 3400 rpm | 360 lb-ft @ 3600 rpm |
| Valve lifter type | Hydraulic | Hydraulic |
| Camshaft | High performance | |
| Fuel system | Holley 4-bbl - 3884505 Holley 4-bbl - 3890499 A.I.R. |
Holley 4-bbl -
3884505 Holley 4-bbl - 3890499 A.I.R. |
Engine Specifications - 427 engines
| Item | RPO L36 | RPO L72 |
| Displacement | 427 cid | 427 cid |
| Bore & Stroke | 4.251" x 3.76" | 4.251" x 3.76" |
| Compression Ratio | 10.25:1 | 11.0:1 |
| Advertised Horsepower | 390 hp @ 5200 rpm | 425 hp @ 5600 rpm |
| Torque | 460 lb-ft @ 3600 rpm | 460 lb-ft @ 4000 rpm |
| Valve lifter type | Hydraulic | Mechanical |
| Camshaft | High performance | |
| Fuel system | Holley 4-bbl - 3882835 | Holley 4-bbl - 3886101 |
Regular Production Options
| RPO | Description | Cost | Units | % |
| 19437 | Coupe | $4,295.00 | 9,958 | 35.9 |
| 19467 | Convertible | $4,084.00 | 17,762 | 64.1 |
| 427 | Leather seats | $79.00 | 2,002 | 7.2 |
| A01 | Tinted windows (all) | $15.80 | 11,589 | 41.8 |
| A02 | Tinted windows (windshield only) | $10.55 | 9,270 | 33.4 |
| A31 | Power windows | $57.95 | 4,562 | 16.5 |
| A82 | Headrests | $42.15 | 1,033 | 3.7 |
| A85 | Shoulder belts | $26.35 | 37 | 0.1 |
| C07 |
Hardtop (convertible only) in place of folding top In addition to folding top |
N.C. $231.75 |
8,463 | 47.65 |
| C48 | Heater delete | credit - n/a | 54 | .02 |
| C60 | Air conditioning | $412.90 | 3,520 | 12.7 |
| F41 | Special suspension | $36.90 | 2,705 | 9.8 |
| G81 | Positraction | $42.15 | 24,056 | 86.8 |
| J50 | Power brakes | $42.15 | 5,464 | 19.7 |
| J56 | Heavy duty brakes | $342.30 | 382 | 1.4 |
| K19 | Air injection reactor | n/a | 2,380 | 8.59 |
| K66 | Transistor ignition | $73.75 | 7,146 | 25.8 |
| L36 | 427-cid, 390-hp | $181.20 | 5,116 | 18.5 |
| L72 | 427-cid, 425 / 450-hp (2) | $312.85 | 5,258 | 18.97 |
| L79 | 327-cid, 350-hp | $105.35 | 7,591 | 27.4 |
| M20 | Wide ratio 4-speed transmission * | $184.35 | 10,837 | 39.1 |
| M21 | Close ratio 4-speed transmission | $184.35 | 13,903 | 50.2 |
| M22 | Heavy duty close ratio 4-speed transmission | $237.00 | 15 | 0.1 |
| M35 | Powerglide 2-speed automatic transmission (1) | $194.35 | 2,401 | 16.45 |
| N03 | 36-gallon fuel tank (coupe only) | $198.05 | 66 | 0.66 |
| N11 | Off-road exhaust system | $36.90 | 2,795 | 10.1 |
| N14 | Side mount exhaust system | $131.65 | 3,617 | 13.0 |
| N32 | Teakwood steering wheel | $47.40 | 3,941 | 14.22 |
| N36 | Telescopic steering column | $42.15 | 3,670 | 13.2 |
| N40 | Power steering | $94.80 | 5,611 | 20.2 |
| P48 | Cast aluminum knock-off wheels | $316.00 | 1,194 | 4.3 |
| P92 | 6.70 x 15 rayon whitewall * | $31.30 | 17,969 | 64.8 |
| T01 | 7.75 x 15 rayon gold stripe * | $46.55 | 5,557 | 20.0 |
| U69 | AM/FM radio | $199.10 | 26,383 | 95.2 |
| V74 | Hazard warning system | $11.60 | 5,764 | 20.8 |
* Images may be representations of the option >> The 327-cid, 250-hp engine, 3-speed manual transmission, vinyl interior, and a soft top (convertible) were included in the base price. >> The 8,463 C07 quantity included 1,303 in lieu of soft tops at no extra cost. >> The 3,520 C60 quantity was split 2,138 coupe and 1,382 convertible >> The 2,401 M35 quantity was split 2,381 with 300-hp and 20 with 390-hp. >> The K19 A.I.R. option was not limited to California use. (1) Since the Powerglide was not an option with the 327/350 or 427/425 engines, their total was deducted from total Corvette sales numbers leaving only 14,601 Corvettes the Powerglide was available with. (2) The L72 427-cid engine was initially rated at 450-hp and later dropped to 425-hp although no changes were made to the engine itself. > Tachometer redline→ |
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1966 Exterior/Interior Colors
| RPO | Color | Interior Color Choices | Units | % |
| 900 | Tuxedo Black | Blue - Bright Blue - Black - Green - Red - Saddle - Silver - White/Blue | 1,190 | 4.3 |
| 972 | Ermine White | Blue - Bright Blue - Black - Green - Red - Saddle - Silver - White/Blue | 2,120 | 7.6 |
| 974 | Rally Red | Black - Red | 3,366 | 12.1 |
| 976 | Nassau Blue | Blue - Bright Blue - Black - White/Blue | 6,100 | 22.0 |
| 978 | Laguna Blue | Blue - Bright Blue - Black | 2,054 | 7.4 |
| 980 | Trophy Blue | Blue - Bright Blue - Black | 1,463 | 5.3 |
| 982 | Mosport Green | Black - Green | 2,311 | 8.3 |
| 984 | Sunfire Yellow | Black | 2,339 | 8.4 |
| 986 | Silver Pearl | Black - Red - Silver | 2,967 | 10.7 |
| 988 | Milano Maroon | Black - Saddle | 3,799 | 13.7 |
Convertible top available in black, beige, and white with any exterior color.
Interior Trim Codes
| RPO | Color/Material |
| Standard | Black vinyl |
| 402 | Black leather |
| 407 | Red vinyl |
| 408 | Red leather |
| 414 | Bright Blue vinyl |
| 415 | Bright Blue leather |
| 418 | Blue vinyl |
| 419 | Blue leather |
| 420 | Saddle vinyl |
| 421 | Saddle leather |
| 426 | Silver vinyl |
| 427 | Silver leather |
| 430 | Green vinyl |
| 431 | Green leather |
| 437 | White vinyl with Black accents |
| 450 | White vinyl with Blue accents |
| 451 | White leather with Blue |
1966 OEM Supplier Paint Colors
| Color | Valspar Code | PPG Code | DuPont Code | RM Code | SW Code | WA Code |
| 900 - Tuxedo Black | K090 | 9300 | 99 | 946 | n/a | n/a |
| 972 - Ermine White | W612 | 8259 | 4024 | 1199 | 1911 | 2661 |
| 974 - Rally Red | R1163L | 71491 | 4688 | 1744 | 2453 | 3395 |
| 976 - Nassau Blue | L176 | 13057 | 4690 | 1747 | 2455 | 3364 |
| 978 - Laguna Blue | L1718 | 13188 | 4710 | 1826 | n/a | 3522 |
| 980 - Trophy Blue | L2806 | 13199 | 4712 | 1825 | n/a | 3524 |
| 982 - Mosport Green | G1858 | 43535 | 4713 | 1827 | n/a | 3525 |
| 984 - Sunfire Yellow | Y806 | 81540 | 4711 | 1828 | n/a | 3523 |
| 986 - Silver Pearl | S536 | 32449 | 4621 | 1708 | 2422 | 3314 |
| 988 - Milano Maroon | R2402 | 50706 | 4689 | 1746M | 2454 | 3365 |
Mechanical Specifications
| Wheelbase | 98.0 inches |
| Track Front/Rear (inches) | 56.8 / 57.6 |
| Overall Length | 175.1 |
| Width | 69.6 inches |
| Height | 49.8 inches (folding top & coupe) 49.6 inches (hard top) |
| Curb Weight | 3,160 pounds - convertible 3,168 pounds - convertible with hardtop 3,140 pounds - coupe Powerglide - add 23.3 lbs. 4-speed - add 1.9 lbs. |
| Coolant Capacity | 16.0 quarts with heater/15.0 quarts without - 327 engines 23.0 quarts with heater/22.0 quarts without - 427 engines |
| Fuel Capacity | 20.0 gallons |
| Oil Capacity | 5.0 quarts |
GM Heritage PDF file of specifications/options/etc.
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© C1-C3 CorvetteWorld
