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1966 Pontiac Gto Catalog and Classic Car Guide, Ratings and Features

Image of 1966 Pontiac Gto, sourced from gmauthority.com , Image Link.

Performance Metrics

Performance: +70
Handling: +65
Ride Comfort: +60

Fundamental Metrics

Safety: +30
Maintenance and Upkeep: +70
Restoration Difficulty: +60

Emotional Appeal

Looks: +85
Collectability: +80
Historical Significance: +75

MMP Rating

7.5 /10
Engine Specifications
Engine Options: 389 CID V8
Displacement Range: 389 cubic inches (6.4 Liters)
Horsepower Range: 335-360 HP
Torque: 424-438 lb-ft
Compression Ratio: 10.75:1
Ignition System: Conventional breaker-point ignition system
Cooling System: Liquid-cooled
Performance Specifications
0-60 Time: 6.5 seconds
1/4 Mile Time: 14.5 seconds
Top Speed: 115 mph
Transmission and Drive
Drive Type: Rear-wheel drive
Transmission Type: 3-speed manual, 4-speed manual, 2-speed automatic
Fuel and Efficiency
Fuel System Type: Carburetor
MPG: 10-12 mpg
Dimensions and Brakes
Brakes: Front disc and rear drum brakes
Wheelbase: 115 inches
Weight: 3,570 lbs

Note: Specifications for classic cars are given to the best of our ability, considering the limited and variant data available.

1966 Pontiac GTO: The Quintessential Muscle Car

The 1966 Pontiac GTO stands as a towering figure in the pantheon of American muscle cars. Born from the fervent innovation at Pontiac, a division of General Motors, this model year marked a significant evolution in its lineage. The GTO, which initially started as an optional package for the Pontiac Tempest, had already carved its niche in the automotive world with its powerful performance and aggressive styling. The '66 iteration further solidified its position, becoming a standalone model due to its overwhelming popularity.

At the heart of the GTO's lore is a unique fact that enthusiasts revel in: it is widely considered the first true muscle car, setting the template for performance vehicles that followed. It was a car that not only raced on the streets but also raced into the hearts of American drivers.

Design and Innovation

The exterior of the 1966 Pontiac GTO exuded power and poise. Its long hood and short deck, a hallmark of muscle car design, were complemented by stacked headlights and a split grille that gave it an aggressive face. Chrome accents and dual exhausts added to its sporty allure. Inside, the cabin featured bucket seats and a floor-mounted shifter wrapped in quality vinyl, giving drivers a taste of luxury alongside performance.

Technologically, it boasted advancements like an optional tachometer mounted on the hood for easy viewing during spirited driving. Color options ranged from subtle to bold, with Montero Red and Barrier Blue being among the popular choices that turned heads on every boulevard.

The GTO was available in several body styles including a hardtop, convertible, and sports coupe, but it was the hardtop model that became synonymous with classic American muscle.

Historical Significance

The 1966 GTO's impact was both immediate and enduring. It didn't just compete with its contemporaries; it dominated them in terms of power and style. Its introduction of a 389 cubic inch V8 engine in previous years had already set new standards for performance. This legacy continued with options like the Tri-Power carburetion system being replaced by a single four-barrel Rochester Quadrajet carburetor which still delivered impressive horsepower.

The GTO's influence extended beyond raw power; it became an icon of youth culture and freedom, capturing the spirit of an era where cars were more than transportation—they were statements.

Performance and Handling

The 1966 GTO was no slouch when it came to performance. With options like the 360-horsepower V8 engine under its hood, it could rocket from 0-60 mph in less than 7 seconds—a figure that commanded respect on both street and strip. Its top speed flirted with the 120 mph mark, making it one of the fastest cars on the road at the time.

Handling was equally impressive for such a powerful rear-wheel-drive vehicle. While it was no European sports car around corners, it managed bumps and windy roads with aplomb for its size and weight. Drivers often recall the visceral experience—the rumble of the engine, the sensation of power at their fingertips, and how every drive felt like an event.

Ownership Experience

The GTO served various roles ranging from daily driver to weekend drag racer. It was relatively reliable for its era but did require regular maintenance to keep its performance optimal. Parts were plentiful which made repairs straightforward for those with mechanical know-how.

Fun Facts

A few fun facts about this legend: A rare option was the "Tiger Gold" paint offered through special promotion. Celebrity ownerships included automotive enthusiast Jay Leno. Although not record-breaking in terms of speed by today's standards, at its time it was one of America's fastest production cars.

Despite criticisms over fuel economy (a common issue among muscle cars), none could overshadow its acclaim.

Collector's Information

In today's market, a well-maintained 1966 Pontiac GTO can fetch anywhere from $30,000 to well over $75,000 depending on condition and originality. Approximately 96,946 units were produced that year, making them relatively rare but not impossible to find for dedicated collectors.

As for appreciation value—GTOs have consistently seen an upward trend thanks to their iconic status among classic car enthusiasts.

Conclusion

The 1966 Pontiac GTO is more than just a classic car; it's a cultural touchstone that represents an era when horsepower reigned supreme and style was as important as substance. Whether you're behind the wheel or admiring from afar, this muscle car continues to captivate generations with its blend of beauty and brawn—a true testament to American automotive excellence.

1966 Pontiac Gto Catalog of Parts

1966 Pontiac GTO Door Lock Pillar Seal-ALP 5000 1966 Pontiac GTO Door Lock Pillar Seal-ALP 5000Door Lock Pillar Seal. Used on lower leading edge of quarter window. Highly detailed, made with steel cores. Pair R&L


1966 Pontiac GTO Shock Absorber Grommet.  1 bottom O.D., 3/4 high-BN 1 1966 Pontiac GTO Shock Absorber Grommet. 1" bottom O.D., 3/4" high-BN 1Shock Absorber Grommet. 1" bottom O.D., 3/4" high., with 7/16" I.D. Each

1966 Pontiac GTO Front coil-spring insulator-BN 110 1966 Pontiac GTO Front coil-spring insulator-BN 110Front coil-spring insulator. Fits '41-'60 Oldsmobile and '50-'83 GM passenger models. 5-3/8 in. OD x 3-3/4 in. ID x 3/4 in. high with 13/16 in. wide bottom flange 1/4" thick, 12 flutes. Each.

1966 Pontiac GTO Butyl Glass Setting Tape-BT 1 1966 Pontiac GTO Butyl Glass Setting Tape-BT 1Butyl Glass Setting Tape. Used to install windshields and backlights. Superior sealing properties. 5/16" wide X 15' long. Each

1966 Pontiac GTO Convertible Top Windshield Header Seal-C/LP 40-G 1966 Pontiac GTO Convertible Top Windshield Header Seal-C/LP 40-GConvertible Top Windshield Header Seal. Clips installed every 3-5/8". Made of soft, black, skin-covered sponge. Sold by the foot.

1966 Pontiac GTO Clutch and Brake Pedal Pads.  Exact reproduction-CB 99 1966 Pontiac GTO Clutch and Brake Pedal Pads. Exact reproduction-CB 99Clutch and Brake Pedal Pads. Exact reproduction. 3-1/2" wide. Pair





1966 Pontiac GTO Auto Brake Pedal Pad.  Nice reproduction.  5-3/4 wide-CB 99-G 1966 Pontiac GTO Auto Brake Pedal Pad. Nice reproduction. 5-3/4" wide-CB 99-GAuto Brake Pedal Pad. Nice reproduction. 5-3/4" wide. Each

1966 Pontiac GTO Hood to Cowl Seal, 64-67 GM A Body, Except Oldsmobile A Body, Each-CS 4 1966 Pontiac GTO Hood to Cowl Seal, 64-67 GM A Body, Except Oldsmobile A Body, Each-CS 4Hood to Cowl Seal, 64-67 GM A Body, Except Oldsmobile A Body (F85, Cutlass, etc.), Each. These seals protect the rear end of the engine compartment from the dust and debris that can fall from the windshield into the engine compartment.

1966 Pontiac GTO Windshield Pillar Post Seals for Convertibles-CZ 8107 1966 Pontiac GTO Windshield Pillar Post Seals for Convertibles-CZ 8107Windshield Pillar Post Seals for Convertibles. Two pieces, 25" long. Pair

1966 Pontiac GTO Door Bumper.  1-1/8 high X 15/16 wide X 7/8 long.  Each-DB 33 1966 Pontiac GTO Door Bumper. 1-1/8" high X 15/16" wide X 7/8" long. Each-DB 33Door Bumper. 1-1/8" high X 15/16" wide X 7/8" long. Each

1966 Pontiac GTO Door Bumper.  Snap-in style.  Two used per car-DB 43 1966 Pontiac GTO Door Bumper. Snap-in style. Two used per car-DB 43Door Bumper. Snap-in style. Two used per car. 1-1/8" high X 15/16" long. Each

1966 Pontiac GTO Hood Adjustment Bolt and Bumper.  1 diameter rubber head-HA 2 1966 Pontiac GTO Hood Adjustment Bolt and Bumper. 1" diameter rubber head-HA 2Hood Adjustment Bolt and Bumper. 1" diameter rubber head. 5/16" thick X 18 threads/inch X 1-3/4" long bolt. Each

1966 Pontiac GTO Hood Adjustment Bolt and Bumper-HA 3 1966 Pontiac GTO Hood Adjustment Bolt and Bumper-HA 3Hood Adjustment Bolt and Bumper. 1-1/8" diameter rubber head. 5/16" thick X 18 threads/inch X 2-1/8" long bolt. Each

1966 Pontiac GTO Top Bow to Header Seal-HD 729 1966 Pontiac GTO Top Bow to Header Seal-HD 729Top Bow to Header Seal. Made with steel cores on end, and all clips. 55" Long. Each



1966 Pontiac GTO 1966 Pontiac GTO

1966 Pontiac GTO Trip Meter Reset Knob.  Made of black rubber-KN 10 1966 Pontiac GTO Trip Meter Reset Knob. Made of black rubber-KN 10Trip Meter Reset Knob. Made of black rubber. Compare to measurements: 1/8" I.D., 7/16" O.D. X 1/2" tall. Each


1966 Pontiac GTO Molded Door Seals for 2-door hardtops and convertibles-LM 12 1966 Pontiac GTO Molded Door Seals for 2-door hardtops and convertibles-LM 12Molded Door Seals for 2-door hardtops and convertibles. Made with proper ends. Installed clips and skin-covered sponge. Pair R&L

1966 Pontiac GTO Molded Door Seals with Clips.  For 2-door sedans-LM 12-R 1966 Pontiac GTO Molded Door Seals with Clips. For 2-door sedans-LM 12-RMolded Door Seals with Clips. For 2-door sedans. Replaces OEM #4540548/9. Each is 146" long. Pair R&L

1966 Pontiac GTO Transmission Cross-Member Mount Insulators-MM 30 1966 Pontiac GTO Transmission Cross-Member Mount Insulators-MM 30Transmission Cross-Member Mount Insulators. For 2-door hardtops and convertibles. Replaces OEM #9774451. Pair

1966 Pontiac GTO Door Handle Pads.  2-5/8 long  1-1/8 long.  Set RL-MP 989-D 1966 Pontiac GTO Door Handle Pads. 2-5/8" long & 1-1/8" long. Set R&L-MP 989-DDoor Handle Pads. 2-5/8" long & 1-1/8" long. Set R&L



1966 Pontiac GTO Left Hand Remote Mirror Pad.  1-1/4 wide X 4-1/4 long-MP 989-I 1966 Pontiac GTO Left Hand Remote Mirror Pad. 1-1/4" wide X 4-1/4" long-MP 989-ILeft Hand Remote Mirror Pad. 1-1/4" wide X 4-1/4" long. Each

1966 Pontiac GTO Rear view mirror pad-MP 989-J 1966 Pontiac GTO Rear view mirror pad-MP 989-JRear view mirror pad. Fits '65-'68 Pontiac A-body cars with remote mirror. 1-1/8 in. wide x 4-1/4 in. long. Each.

1966 Pontiac GTO Standard Mirror Pad.  1-1/8 wide X 5-3/8 long.  Each-MP 989-N 1966 Pontiac GTO Standard Mirror Pad. 1-1/8" wide X 5-3/8" long. Each-MP 989-NStandard Mirror Pad. 1-1/8" wide X 5-3/8" long. Each

1966 Pontiac GTO Master kit. 2-door hardtop-RK 8100-102 1966 Pontiac GTO Master kit. 2-door hardtop-RK 8100-102Master kit. 2-door hardtop. Molded door seals (LM 12), roof-rail seals (RR 5001), trunk seal (TK 46-16), door-lock pillar seals (ALP 5000), door/trunk lock-cylinder pads (UM 1600-100), and rear window roll-up seals (VS 3-L).

1966 Pontiac GTO Master kit. Convertible-RK 8100-108 1966 Pontiac GTO Master kit. Convertible-RK 8100-108Master kit. Convertible. Molded door seals (LM 12), roof-rail seals (RR 1609), pillar-post seals (CZ 8107), trunk seal (TK 46-16), door-lock pillar seals (ALP 5000), door/trunk lock cylinder pads (UM 1600-100), rear roll-up seals (VS 3-L).

1966 Pontiac GTO Basic Kit, for 2-Door Hardtop-RKB 1700-102 1966 Pontiac GTO Basic Kit, for 2-Door Hardtop-RKB 1700-102Basic Kit, for 2-Door Hardtop. Door (LM 12) Roof Rail (RR 5001) Trunk (TK 46-16), Seals.

1966 Pontiac GTO Basic Kit, for 2-Door Convertible-RKB 1700-106 1966 Pontiac GTO Basic Kit, for 2-Door Convertible-RKB 1700-106Basic Kit, for 2-Door Convertible. Door (LM 12) Roof Rail (RR 1609) Trunk (TK 46-16), Seals.


1966 Pontiac GTO Sun Visor Rod Rubber Grommet.  3/4 long.  Gray.  Each-RP 303-C 1966 Pontiac GTO Sun Visor Rod Rubber Grommet. 3/4" long. Gray. Each-RP 303-CSun Visor Rod Rubber Grommet. 3/4" long. Gray. Each

1966 Pontiac GTO Clutch Rod Bellows-RP 31-C 1966 Pontiac GTO Clutch Rod Bellows-RP 31-CClutch Rod Bellows. Bolts on to firewall where clutch rod passes through. Each

1966 Pontiac GTO Clutch Arm Fork Boot.  Fits on bell housing to keep dirt out-RP 31-D 1966 Pontiac GTO Clutch Arm Fork Boot. Fits on bell housing to keep dirt out-RP 31-DClutch Arm Fork Boot. Fits on bell housing to keep dirt out. Each

1966 Pontiac GTO Shift boot. For models without console-RP 33-P 1966 Pontiac GTO Shift boot. For models without console-RP 33-PShift boot. For models without console. Molded in a single piece. An American made part for your American made collector car. Each.

1966 Pontiac GTO Positive Crankcase Ventilation Grommet-RP 9 1966 Pontiac GTO Positive Crankcase Ventilation Grommet-RP 9Positive Crankcase Ventilation Grommet. 11/16" wide X 1-5/8" long, with 15/16" I.D. (Fits some models) Each

1966 Pontiac GTO Convertible Top Rail Kit-RR 1609 1966 Pontiac GTO Convertible Top Rail Kit-RR 1609Convertible Top Rail Kit. 7-Piece set includes all right and left side top rail seals and windshield top header seal (HD 729).

1966 Pontiac GTO Molded Roof Rail Seals for 2-Door Hardtop Only.  Pair RL-RR 5001 1966 Pontiac GTO Molded Roof Rail Seals for 2-Door Hardtop Only. Pair R&L-RR 5001Molded Roof Rail Seals for 2-Door Hardtop Only. Pair R&L

1966 Pontiac GTO Trunk Bumper.  Fits lower corner on decklid.  15/16 O.D-SB 34 1966 Pontiac GTO Trunk Bumper. Fits lower corner on decklid. 15/16" O.D-SB 34Trunk Bumper. Fits lower corner on decklid. 15/16" O.D., 11/16" high. Each

1966 Pontiac GTO Door Bumper, 57-74 GM Cars, Made with Twin Retainers, Each-SB 35 1966 Pontiac GTO Door Bumper, 57-74 GM Cars, Made with Twin Retainers, Each-SB 35Door Bumper, 57-74 GM Cars, made with twin retainers, Each. Measure 1-1/16" high X 19/32" wide X 1-1/32" long.

1966 Pontiac GTO Floor Plug.  For under rear seat.  Fits a 1 hole.  Each-SB 48-A 1966 Pontiac GTO Floor Plug. For under rear seat. Fits a 1" hole. Each-SB 48-AFloor Plug. For under rear seat. Fits a 1" hole. Each

1966 Pontiac GTO Seat Bumper.  Made with steel core like original-SB 62-A 1966 Pontiac GTO Seat Bumper. Made with steel core like original-SB 62-ASeat Bumper. Made with steel core like original. 1-1/2" long, 7/16" thick. Two used per car. Each

1966 Pontiac GTO Clutch Pedal Return Bumper-SB 64 1966 Pontiac GTO Clutch Pedal Return Bumper-SB 64Clutch Pedal Return Bumper. 1-13/16" long X 13/16" wide X 7/8" high (center). Each

1966 Pontiac GTO Glove Box and Fuel Door Bumper.  Fits 3/16 hole.  Each-SB 78 1966 Pontiac GTO Glove Box and Fuel Door Bumper. Fits 3/16" hole. Each-SB 78Glove Box and Fuel Door Bumper. Fits 3/16" hole. Each

1966 Pontiac GTO Fuel Door Bumper.  7/8 high, 5/16 O.D.  Each-SB 81 1966 Pontiac GTO Fuel Door Bumper. 7/8" high, 5/16" O.D. Each-SB 81Fuel Door Bumper. 7/8" high, 5/16" O.D. Each

1966 Pontiac GTO License Plate Bumper.  Fits a 1/4 hole.  Each-SB 82 1966 Pontiac GTO License Plate Bumper. Fits a 1/4" hole. Each-SB 82License Plate Bumper. Fits a 1/4" hole. Each

1966 Pontiac GTO Inner Splash Flaps.  Made with cloth backing-SI 8100-100 1966 Pontiac GTO Inner Splash Flaps. Made with cloth backing-SI 8100-100Inner Splash Flaps. Made with cloth backing. Used as dust and mud shield to keep engine compartments clean. Made from stiff rubber that is identical to original in composition, texture and color. Pair


1966 Pontiac GTO Rocker Arm Cover.  Neoprene plug.  Fits 1 hole.  Each-SM 66 1966 Pontiac GTO Rocker Arm Cover. Neoprene plug. Fits 1" hole. Each-SM 66Rocker Arm Cover. Neoprene plug. Fits 1" hole. Each

1966 Pontiac GTO Antenna Lead Firewall Grommet-SM 71-A 1966 Pontiac GTO Antenna Lead Firewall Grommet-SM 71-AAntenna Lead Firewall Grommet. Fits a 9/16" hole and has a 7/32" center hole. Each

1966 Pontiac GTO Firewall insulation fastener. 1 in. dia. W head. 1-1/2 in. L-SM 80-A 1966 Pontiac GTO Firewall insulation fastener. 1 in. dia. W head. 1-1/2 in. L-SM 80-AFirewall insulation fastener. 1 in. dia. W head. 1-1/2 in. L. Replaces OEM#'s (GM) 7642589 and (AMC) 4001934. Black. Each.


1966 Pontiac GTO Trunk Mat-TM 8100 1966 Pontiac GTO Trunk Mat-TM 8100Trunk Mat. High quality reproduction, made specific for vehicle. Green houndstooth print on rubber. Made in two pieces. Each

1966 Pontiac GTO Unbeaded Door and Trunk Lock Gasket.  1-3/16 O.D., 7/8 I.D-UM 1600-100 1966 Pontiac GTO Unbeaded Door and Trunk Lock Gasket. 1-3/16" O.D., 7/8" I.D-UM 1600-100Unbeaded Door and Trunk Lock Gasket. 1-3/16" O.D., 7/8" I.D. Each


1966 Pontiac GTO Air Conditioning Evaporation Drain Tube.  6-7/8 long-VH 102-G 1966 Pontiac GTO Air Conditioning Evaporation Drain Tube. 6-7/8" long-VH 102-GAir Conditioning Evaporation Drain Tube. 6-7/8" long. Each

1966 Pontiac GTO Vertical glass run channel-VR 2009 1966 Pontiac GTO Vertical glass run channel-VR 2009Vertical glass run channel. Fits in division bar channel between front vent window and leading edge of window glass in door. 37 in. long. Pair.

1966 Pontiac GTO Rear Side Roll-Up Window Seal, for Hardtops and Convertibles-VS 3 1966 Pontiac GTO Rear Side Roll-Up Window Seal, for Hardtops and Convertibles-VS 3Rear Side Roll-Up Window Seal, for Hardtops and Convertibles. Two 20" sections slide into metal track. No steel insert. Pair

1966 Pontiac GTO Rear Roll-Up Window Seals-VS 3-L 1966 Pontiac GTO Rear Roll-Up Window Seals-VS 3-LRear Roll-Up Window Seals, for 2-Door Hardtops and Convertibles. Pair

1966 Pontiac GTO Window Sweeper Kit Fits 66-67  Pontiac Lemans GTO 2 Door Hardtop 8 piece set-WC 8100-16 1966 Pontiac GTO Window Sweeper Kit Fits 66-67 Pontiac Lemans GTO 2 Door Hardtop 8 piece set-WC 8100-16Window Sweeper Kit Fits 66-67 Pontiac Lemans GTO 2 Door Hardtop 8 piece set. This eight (8) piece set includes inner and outer felt beltline weatherstrips for each side.

1966 Pontiac GTO Window Sweeper Kit Fits 66-67 Pontiac Lemans GTO Convertible 8 piece set-WC 8100-18 1966 Pontiac GTO Window Sweeper Kit Fits 66-67 Pontiac Lemans GTO Convertible 8 piece set-WC 8100-18Window Sweeper Kit Fits 66-67 Pontiac Lemans GTO Convertible 8 piece set. They come ready to install with finished ends and body curvature bends for a factory like appearance, and are made from original factory style material. This set includes the inner and outer seals for all side windows.

1966 Pontiac GTO Quarter Window Reveal Molding Clip.  Made of Steel-WF 205 1966 Pontiac GTO Quarter Window Reveal Molding Clip. Made of Steel-WF 205Quarter Window Reveal Molding Clip. Made of Steel. 1-3/8" X 11/16". Each

1966 Pontiac GTO Vent window seals. 2-door hardtop and convertible-WR 2009 1966 Pontiac GTO Vent window seals. 2-door hardtop and convertible-WR 2009Vent window seals. 2-door hardtop and convertible. Replaces OEM#'s 9706596/7. Pair. R&L.

1966 Pontiac GTO Vent Window Seals.  Fits 2-door sedan (coupe  sports coupe)-WR 2009-A 1966 Pontiac GTO Vent Window Seals. Fits 2-door sedan (coupe & sports coupe)-WR 2009-AVent Window Seals. Fits 2-door sedan (coupe & sports coupe). Pair


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