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 Library Home > Pontiac > Pontiac GTO > 1966 Pontiac GTO

 

1966 Pontiac GTO
1966 was the year the GTO finally became its own model.

1966 Pontiac GTO

Well it was finally official, GTO had become its own model for Pontiac in 1966 and sales of the new GTO Model sky-rocketed. The new GTO saw many different features including Grill placed parking lamps, GTO nameplates, standard single centered hood scoop, V-shaped front wheel opening badges and a special 389 cubic inch four barrel V-8 with Dual Exhaust and high performance shock absorbers and front stabilizer bars. Engine and power train remained the same for model year 1965 with a standard GTO being equipped with the 335 horsepower 389 4 barrel. The optional high-performance 389 could be ordered rated at 360 horsepower at 5200rpm. Surprisingly the Tri-power option was dropped for model year 1966.

Optional equipment on the GTO included: Air Conditioning - Power Steering - Sprint Option Package - Ride & Handling Package - Rally Wheel Trim - Custom Steering Wheel - Safe-T-Trak

 

1966 Pontiac GTO Specifications and Production

Model Number Body/Style Number Body Type & Seating Factory Price Shipping Weight Total Production
GTO Series 242
242 07 2d Coupe - 5P $2,783 3,445 lbs 10,363
242 17 2d Hardtop - 5P $2,847 3,465 lbs 73,785
242 67 2d Convertible - 5P $3,082 3,555 lbs 12,798

Note: 96,946 GTO's were built in 1966

Model Series Identification

GTO 2d Coupe - 5P - 24207 GTO 2d Hardtop - 5P - 24217 GTO 2d Convertible - 5P - 24267

Chassis Data

Model Wheelbase Overall Length Width Front Tread Rear Tread Tires
GTO 115 in 206.4 in 74.4 in 58 in 58 in 7.75 x 14

VIN Decoding

Serial Numbers were on the left front hinge pillar. Fisher body on cowl tells style number, body number, trim code, paint code, and other data.
First Symbol - Manufacturer
2 = Pontiac
Second & Third Symbol - Series
33 = Standard Tempest & Station Wagon w/o wood grain 52 = Catalina & Ventura
35 = Custom Tempest & Station Wagon w/o wood grain 54 = 2 + 2
37 = LeMans 56 = Star Chief
39 = Safari Station Wagon w/ wood grain 62 = Bonneville
52 = Catalina & Ventura 66 = Grand Prix
Fourth & Fifth Symbol - Body Style
07 = two-door sedan 45 = station wagon three seat
11 = two-door sedan 57 = two-door hardtop
17 = two-door hardtop 67 = convertible
35 = station wagon two seat 69 = four-door sedan
37 = two-door hardtop 87 = two-door hardtop
39 = four-door hardtop  
Sixth Symbol - Last Digit Of The Model Year
6 = 1966
Seventh Symbol - Assembly Plant
(B) Baltimore, Maryland (P) Pontiac, Michigan
(C) Southgate, California (R) Arlington, Texas
(D) Doraville, Georgia (U) Lordstown, Ohio
(E) Linden, New Jersey (V) Bloomfield, Illinios
(G) Framingham, Massachusetts (X) Kansas City, Kansas
(K) Kansas City, Missouri (Z) Fremont, California
Last Six Symbols - Production Sequence
Started at 100001

Options and Accessories

Description Description
Power Steering Ride & Handling Package
Air Conditioning Rally Wheel Rims
Sprint Option Package Custom Steering Wheel
Whitewall Tires 389-cid/338-hp V-8

1966 Pontiac GTO Engine Options

Letter Code Engine Horsepower Torque Transmission Carburetor
WS 8-389 360 424 Manual 4 BC
WT 8-389 335 431 Manual 4 BC
WW 8-389 335 431 Manual 4 BC
WV 8-389 360 424 Manual 4 BC
XE 8-389 335 431 Turbo Hydra-Matic 4 BC
XS 8-389 360 424 Turbo Hydra-Matic 4 BC
YR 8-389 360 424 Turbo Hydra-Matic 4 BC
YS 8-389 335 431 Turbo Hydra-Matic 4 BC

Transmission Codes

Transmission Location
Turbo Hydra-Matic 350 Stamped on servo cover on right side of transmission.
Turbo Hydra-Matic 400 On metal tag fastened to right side of transmission case or on the left side of converter housing.
Powerglide Stamped on a metal tag located on the right side of the transmission.
Super Turbine 300 (TempesTorque) On metal tag fastened to right side of transmission case or stamped on lower servo cover.
Jetway On metal tag fastened to right side of transmission case or stamped on lower servo cover.
3-Speed Painted or stamped on the transmission case.
4-Speed Painted or stamped on the transmission case.
Plant and Type Designation Prefix Transmission Type
LA TempesTorque
LB TempesTorque
MA TempesTorque
MB TempesTorque
MC TempesTorque
NA TempesTorque
PA Turbo Hydra-Matic 400
PB Turbo Hydra-Matic 400
PC Turbo Hydra-Matic 400
PD Turbo Hydra-Matic 400
PG Turbo Hydra-Matic 400
PH Turbo Hydra-Matic 400
PQ Turbo Hydra-Matic 400

Axle Codes

Location Of Axle Codes: Letter codes are on the rear of right hand axle tube near carrier or on the left hand brake drum.
 
Codes - Non-Locking Codes - Locking Ratio
WB, XB YB, ZB 2.56
WC YC 2.78
WD, XD YD, ZD 2.93
WE, XE YE, ZE 3.08
WF, XF YF, ZF 3.23
WG, XG YG, ZG 3.36
WH, XH YH, ZH 3.55
WK, XK YK, ZK 3.90
WL, XL YL, ZL 4.33
  • Codes beginning with "W" and "Y" are standard brake linings. Codes beginning with "X" and "Z" are metallic brake linnings.
  • Paint Codes - Exterior Colors

    Color Name / Code Color Image Color Name / Code Color Image

    A - Starlight Black
    Lucite® Code - 88L
    Dulux® Code - 93-005

    N - Burgundy
    Lucite® Code - 4624LH
    Dulux® Code - 181-97213M
    B - Blue Charcoal
    Lucite® Code - 4622L
    Dulux® Code - 181-97211
    P - Carrier Blue
    Lucite® Code - 4760L
    Dulux® Code - 181-98106

    C - Cameo Ivory
    Lucite® Code - 4024L
    Dulux® Code - 93-93774

    R - Montero Red
    Lucite® Code - 4625LH
    Dulux® Code - 93-97540H

    D - Fontaine Blue
    Lucite® Code - 4630L
    Dulux® Code - 181-97219

    T - Martinique Bronze
    Lucite® Code - 4706L
    Dulux® Code - 181-97591

    E - Nightwatch Blue
    Lucite® Code - 4631L
    Dulux® Code - 181-97220

    V - Mission Beige
    Lucite® Code - 4401L
    Dulux® Code - 93-96261

    H - Palmetto Green
    Lucite® Code - 4633L
    Dulux® Code - 181-97223

    W - Platinum
    Lucite® Code - 4708L
    Dulux® Code - 181-97593

    K - Reef Turquoise
    Lucite® Code - 4628L
    Dulux® Code - 181-97217

    Y - Candelite Cream
    Lucite® Code - 4709L
    Dulux® Code - 93-9794

    L - Marina Turquoise
    Lucite® Code - 4703L
    Dulux® Code - 181-97561H

     

    NOTES: The first letter of a two-letter paint code identifies the body color. The second letter identifies the roof color. (For example, the combination VC on a Pontiac would indicate the body finished in Mission Beige and the roof area in Cameo Ivory.) General Motors paint code plate for all models except Corvair and Corvette is located under the hood at the top of the firewall on the left or right of the upper shroud. Corvair paint code plate is on the left cross-rail in the engine compartment. Corvette paint code plate is on the instrument panel brace, below the glove compartment.
     

    Paint Codes - Interior Colors

    Color Name / Code Color Image Color Name / Code Color Image

    Parchment
    Lucite® Code - 9000L (semi-gloss)

    Medium Turquoise
    Lucite® Code - 4628L (semi-gloss)

    Medium Fawn
    Lucite® Code - 9274L (semi-gloss)

    Dark Turquoise
    Lucite® Code - 9273LH (semi-gloss)
    Lucite® Code - 9287LH (flat)
    Dark Fawn
    Lucite® Code - 9288LH (flat)
    Medium Blue
    Lucite® Code - 4630L (semi-gloss)
    Medium Slate
    Lucite® Code - 9269LH (semi-gloss)

    Dark Blue
    Lucite® Code - 9268LH (semi-gloss)
    Lucite® Code - 9284LH (flat)

    Dark Slate Gray
    Lucite® Code - 9285LH (flat)

    Red
    Lucite® Code - 9183LM (semi-gloss)

    Gunmetal
    Lucite® Code - 4622L (semi-gloss)
    Lucite® Code - 9191LH (flat)
    Dark Red
    Lucite® Code - 9181LM (semi-gloss)
    Lucite® Code - 9201LM (flat)
    Medium Green
    Lucite® Code - 4633L (Semi-gloss)
    Plum
    Lucite® Code - 9179LM (semi-gloss)
    Lucite® Code - 9200LM (flat)
    Midnight Green
    Lucite® Code - 4634L (semi-gloss)

    Black
    Lucite® Code - 88L (semi-gloss)
    Lucite® Code - 4428L (flat)

    NOTE: Unpolished LUCITE® will generally produce a gloss comparable to original interior semi-gloss finishes. If lower gloss is required, use 2 oz. DuPont #4528S flattening compound to a pint of unreduced color.

    Trunk Colors (spatter finish)

    Turquoise = 389 - 256

    Gray - Black = 389 - 259

    1966 Pontiac Owner's Manual


    Photo Gallery - 64 Pictures

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    Note: Information, Specifications, Resources & Photos found in the Research Library
    should only be used as general guidelines. OldRide LLC makes no warranty as to the
    authenticity and accuracy of the information contained hereon.


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