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1964 Pontiac Lemans GTO
Available only in 1964 as an option on the 1964 Pontiac Tempest LeMans. GTO optioned Tempest Lemans featured distinctive appearance items in place of standard LeMans features.

1964 Pontiac Lemans GTO

The famous Grand Turismo Omologata (GTO) was for the first year offered to the public. Available only in 1964 as an option on the 1964 Pontiac Tempest LeMans. GTO optioned Tempest Lemans featured distinctive appearance items in place of standard LeMans features. Standard Engine was a 389 cubic inch with 10.75:1 compression ratio which produced 325 horsepower at 4600 rpm's. Optional you could factory order the same 389 cubic inch motor which produced 348 horsepower at 4600 rpm's.

Standard Equipment included: 389 engine w/1 - 4bbl and 325 horsepower, 3 speed stick with Hurst Shifter, Heavy-duty clutch, heavy-duty springs, shocks, stabilizer bar, special 7.5 x 14 red-line tires (rayon cord whitewalls optional at no extra cost), 14 x 6JK wide-rim wheels, high capacity radiator, declutching fan, high capacity battery, chromed air-cleaner, rocker covers, oil filler cap, bucket seats, standard axle ratio 3.23:1 (3.08, 3.36*, 3.55* to 1 available at no extra cost).

Extra Cost Options: 389 engine w/3 - 2bbl and 348 horsepower (code #809), 3.55:1 axle ratio standard with this engine option/4speed with Hurst shifter (gear ratios 2.56:1, 1.91:1, 1.48:1, 1.00:1 and 2.64:1 reverse) 2-speed automatic with 2.20:1 torque converter, Safe-T-Track limited-slip differential,  (Code #701), 3.90:1, axle ratio available on special order with metallic brake linings, heavy-duty radiator and Safe-T-Track, Handling kit-20:1 quick steering and extra-firm-control heavy-duty shocks (Code #612), high-performance full transistor (breakerless) ignition (Code #671), tachometer (code #452), custom sports steering wheel, exhaust splitters (dealer installed), wire wheel discs (dealer installed), custom wheel discs with spinner and break cooling holes, Console.

1964 Pontiac Tempest Lemans GTO Specifications

Model Number Body/Style Number Body Type & Seating Factory Price Shipping Weight Total Production
Tempest LeMans w/ GTO Option
22 27 2d Coupe - 5P $2,852 3,106 lbs 7,384
22 37 2d Hardtop - 5P $2,963 3,126 lbs 18,422
22 67 2d Convertible - 5P $3,081 3,360 lbs 6,644


  1. 32,450 Tempest LeMans GTO's were built in 1964

Model Series Identification

GTO 2d Coupe - 5P - 2227 GTO 2d Hardtop - 5P - 2237 GTO 2d Convertible - 5P - 2267

Chassis Data

Model Wheelbase Overall Length Width Front Tread Rear Tread Tires
GTO 115 in 203 in 73.3 in 58 in 58 in 7.75 x 14

Photo Gallery - 6 Pictures

click on a thumbnail below for a larger view

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 - Engine
4 = Four Cylinder 8 = Eight Cylinder (V-8)
6 = Six Cylinder  
Second Symbol - Series
0 = Tempest (Standard) 5 = Ventura
1 = Tempest (Custom) 6 = Star Chief
2 = LeMans 8 = Bonneville
3 = Catalina 9 = Grand Prix
Third Symbol - Year
4 = 1964
Fourth Symbol - Assembly Plant
(B) Baltimore, Maryland (P) Pontiac, Michigan
(D) Doraville, Georgia (R) Arlington, Texas
(E) Linden, New Jersey (S) Southgate, California
(F) Fremont, California (U) Lordstown, Ohio
(G) Framingham, Massachusetts (X) Kansas City, Kansas
(M) Kansas City, Missouri  
Last Four Symbols - Production Sequence
Started at 1001

1964 Pontiac Tempest Lemans GTO Engines

Location Of Engine Code: V-8 engine codes are found on front of block below right cylinder head. NOTE: Some Pontiac experts claim that a few GTOs were built with factory installed and/or dealer installed 421-cid V-8s.

Letter Code Engine Horsepower Torque Transmission Carburetor
76X 8-389 348 428 Manual 3 - 2 BC
77J 8-389 348 428 Turbo Hydra-Matic 3 - 2 BC
78X 8-389 325 428 Manual 4 BC
79J 8-389 325 428 Turbo Hydra-Matic 4 BC

Transmission Codes

Transmission Location
Super Hydra-Matic "315" (Dual-Coupling Hydra-Matic) On name plate located on lower left corner of the rear face of transmission case.
Roto Hydra-Matic "10" On serial number plate attached to left side of 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
20 TempesTorque
30 TempesTorque
31 TempesTorque
40 TempesTorque
MC TempesTorque
NA TempesTorque
NB TempesTorque
P Roto Hydra-Matic "10"
PAH Roto Hydra-Matic "10"
PAS Super Hydra-Matic "315"
PB Roto Hydra-Matic "10"
PBS Super Hydra-Matic "315"
PC Roto Hydra-Matic "10"
PCS Super Hydra-Matic "315"
PE Roto Hydra-Matic "10"
PEH Roto Hydra-Matic "10"
PES Super Hydra-Matic "315"
PG Roto Hydra-Matic "10"
PS Super Hydra-Matic "315"

Axle Codes

Location Of Axle Codes: Color Markings on flange end of axle shaft and by ratio stamped on right hand axle tube. (For example: if 43-10 is stamped on the axle tube it is a 4.30:1 ratio. Just divide the first number by the second number to give you the ratio.)
Color - Non-Locking Color - Locking Ratio
Black Black & Green 4.30
Blue Blue & Green 3.55
Brown Brown & Green 3.23
Gray Gray & Green 2.56
  Green 3.90
Orange Orange & Green 2.93
Pink Pink & Green 3.73
Red Red & Green 2.78
Yellow Yellow & Green 3.08
White White & Green 3.36

Options and Accessories

Code Description Price
NA Air Conditioning $430.00
NA Console Shift (LeMans) NA
NA Padded Dash NA
NA Remote Control Mirror $12.00
NA Power Convertible Top NA
NA Power Tilt Bucket Seats $96.00
NA Power Steering $57.00
NA Power Brakes NA
NA Power Tailgate Window NA
NA Push-Button Radio NA
NA Bucket Seats NA
NA Custom Steering Wheel NA
NA Deluxe Steering Wheel w/ Ring NA
NA 4-Speed Manual Transmission NA
NA 389-cid/325-hp V-8 NA
809 389-cid/348-hp V-8 (Tri-Power) NA
NA Heavy-Duty 3-Speed Manual Transmission NA
NA Muncie 4-Speed Manual Transmission (w/ Hurst Linkage) NA
701 Safe-T-Track Differential NA
452 Tachometer $54.00
671 Transistor Ignition NA
NA Cordova Top NA
NA Two-Speed Wipers & Washers NA
NA 3-Speed Manual Transmission (standard) NA
NA Automatic Transmission NA
612 Heavy-Duty Shock Absorbers NA
NA Console w/ Tachometer $161.00


Paint Codes - Exterior Colors

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

A - Tuxedo Black
Lucite® Code - 88
Dulux® Code - 93-005

V - Ember Red
Lucite® Code - 4387LH
Dulux® Code - 93-95896H

J - Meadow Green Metallic
Lucite® Code - 4532L
Dulux® Code - 181-96882

S - Saddle Tan Metallic
Lucite® Code - 4392L
Dulux® Code - 181-96217

H - Skyline Blue
Lucite® Code - 4531
Dulux® Code - 93-96881

C - Ermine White
Lucite® Code - 4024L
Dulux® Code - 93-93774

F - Silver Blue Metallic
Lucite® Code - 4250L
Dulux® Code - 181-95180

R - Desert Beige
Lucite® Code - 4526L
Dulux® Code - 93-96809

W - Daytona Blue Metallic
Lucite® Code - 4395L
Dulux® Code - 181-96220

D - Satin Silver Metallic
Lucite® Code - 4247L
Dulux® Code - 181-95176

P - Azure Aqua Metallic
Lucite® Code - 4253L
Dulux® Code - 181-95183

N - Sunfire Red Metallic
Lucite® Code - 4533LH
Dulux® Code - 181-96884H

Q - Lagoon Aqua Metallic
Lucite® Code - 4529L
Dulux® Code - 181-96812

L - Palomar Red Metallic #2
Lucite® Code - 4600LM
Dulux® Code - Not Available

T - Almond Fawn Metallic
Lucite® Code - 4527L
Dulux® Code - 181-96810

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 FW on a Pontiac would indicate the body finished in Yorktown Blue Metallic and the roof area in Nocturne Bleu Metallic.) 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 rear wheel housing. Corvette paint code plate is under the dash, below the glove compartment.

Paint Codes - Interior Colors

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

Lucite® Code - 9000L (semi-gloss)

Dark Aqua Metallic
Lucite® Code - 9012LH (semi-gloss)
Lucite® Code - 4429L (flat)

Medium Fawn Metallic
Lucite® Code - 4527L (semi-gloss)

Medium Blue Metallic
Lucite® Code - 9006L (semi-gloss)

Light Saddle Metallic
Lucite® Code - 9086LH (semi-gloss)

Dark Blue Metallic
Lucite® Code - 96221 (semi-gloss)
Lucite® Code - 4430L (flat)

Dark Saddle
Lucite® Code - 4436L (flat)

Light Maroon Metallic
Lucite® Code - 9084LM (semi-gloss)
Medium Gray Metallic
Lucite® Code - 9010L (semi-gloss)

Medium Red
Lucite® Code - 9016LH (semi-gloss)

Dark Gray Metallic
Lucite® Code - 9009L (semi-gloss)
Lucite® Code - 4433L (flat)
Lucite® Code - 2931LH (semi-gloss)

Medium Olive Metallic
Lucite® Code - 4532LH (semi-gloss)

Medium Maroon Metallic
Lucite® Code - 9090LM (semi-gloss)

Dark Olive Metallic
Lucite® Code - 4584LH (flat)

Dark Maroon Metallic
Lucite® Code - 94969H (semi-gloss)

Medium Aqua Metallic
Lucite® Code - 9005L (semi-gloss)

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

NOTE: Unrubbed LUCITE® will generally produce a gloss comparable to original unrubbed interior semi-gloss finishes. If lower gloss is required, use DuPont #4528 flattening compound to reduce gloss. This can be approximately 10%.


Trunk Colors (spatter finish)

Red = 389 - 219

Blue-Green = 389 - 220

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