Image of 1978 Pontiac Grand Lemans, Note: These illustrations use artistic license and may differ from actual historical models.
Performance Metrics
Fundamental Metrics
Emotional Appeal
MMP Rating
| Engine Specifications | |
|---|---|
| Engine Options: | 231 cu in (3.8 L) Buick V6, 305 cu in (5.0 L) Chevrolet V8, 350 cu in (5.7 L) Pontiac V8 |
| Displacement Range: | 231-350 cu in |
| Horsepower Range: | 105-170 hp |
| Torque: | 185-275 lb-ft |
| Compression Ratio: | 8.0:1 - 8.5:1 |
| Ignition System: | Electronic Ignition |
| Cooling System: | Liquid cooled |
| Performance Specifications | |
| 0-60 Time: | 10-12 seconds |
| 1/4 Mile Time: | 17-19 seconds |
| Top Speed: | 105-115 mph |
| Transmission and Drive | |
| Drive Type: | Rear-wheel drive |
| Transmission Type: | 3-speed automatic, 4-speed manual |
| Fuel and Efficiency | |
| Fuel System Type: | Carburetor |
| MPG: | 15-20 mpg |
| Dimensions and Brakes | |
| Brakes: | Front disc, rear drum |
| Wheelbase: | 108.1 inches |
| Weight: | 3,500-3,800 lbs |
Note: Specifications for classic cars are given to the best of our ability, considering the limited and variant data available.
1978 Pontiac Grand Lemans: A Classic Blend of Style and Substance
The year was 1978, and the automotive world witnessed the introduction of the Pontiac Grand Lemans, a vehicle that encapsulated the era's charm and an enduring appeal. Born from the esteemed lineage of General Motors, this model was a testament to Pontiac's commitment to blending performance with luxury. As a descendant of the revered LeMans series, which first hit the streets in 1962, the '78 Grand Lemans offered a fresh take on a classic nameplate during a period marked by changing automotive tastes and increasing emissions regulations.
One unique fact that car enthusiasts might find fascinating is that the 1978 Grand Lemans was part of the downsized full-size car lineup introduced by GM in response to fuel economy concerns. This strategic move not only addressed market demands but also set new standards for efficiency within its class.
Design and Innovation
The exterior styling of the 1978 Pontiac Grand Lemans exuded a sense of restrained elegance with its more compact dimensions, long hood, and short deck proportions. The vehicle's design featured a distinctive split grille and quad rectangular headlamps that were hallmarks of Pontiac's design language at the time. The chrome bumpers and trim added a touch of sophistication, while the available Rally II wheels underscored its sporty aspirations.
Inside, occupants were greeted with a cabin that prioritized comfort and practicality. The quality of materials ranged from durable fabrics to optional plush velours, catering to various tastes and preferences. Technological features for its time included an AM/FM stereo radio, air conditioning, and power windows and locks—luxuries that were becoming increasingly common in American cars.
Color options for the Grand Lemans were diverse, with popular choices including classic hues like Cameo White, Solar Gold, and Buccaneer Red. Among body styles, the coupe version stood out as an iconic representation of personal luxury during this era, though sedans and wagons were also available to suit different lifestyle needs.
Historical Significance
The 1978 Pontiac Grand Lemans played a pivotal role in transitioning American full-size vehicles into more fuel-efficient models without sacrificing their inherent character. It set itself apart from contemporaries with its balanced approach to downsizing—a feat that influenced future automotive designs. The Grand Lemans' legacy is evident in how it managed to retain Pontiac's performance-oriented image within a more economical package.
Performance and Handling
Under the hood, the Grand Lemans offered various powertrain options ranging from an economical V6 to robust V8 engines. While top speed and acceleration figures were modest by today's standards—with 0-60 mph times hovering around the 10-second mark—the car delivered respectable performance for its day.
Handling characteristics were typical of American cars from this period: smooth and comfortable over long distances with a soft suspension setup that absorbed road imperfections well. Drivers could expect a relaxed cruising experience complemented by the throaty rumble of a V8 engine when optioned accordingly.
Ownership Experience
The 1978 Grand Lemans found its place as both a daily driver for families and an occasional showpiece for enthusiasts. Its reliability was commendable for its time, with maintenance being relatively straightforward thanks to widespread parts availability and simple mechanical designs—factors that are still appreciated by classic car owners today.
Fun Facts
A piece of trivia that adds to the allure of this model is that it shared some components with other GM A-body vehicles, making restoration projects easier for collectors. While not known for breaking speed records or dominating sales charts like some muscle cars of its era, it did find its way into popular culture through appearances in films and television shows of its era.
Collector's Information
Today, values for a well-preserved 1978 Pontiac Grand Lemans can vary widely based on condition, originality, and engine option. Estimates suggest that prices can range from $5,000 for models in fair condition up to $20,000 or more for pristine examples. While production numbers were substantial at the time, finding one in excellent condition has become increasingly challenging due to age and attrition.
As classic car enthusiasts continue to appreciate models from this era for their simplicity and charm, it's likely that values will remain stable or appreciate modestly over time—especially for well-maintained or restored units.
Conclusion
The 1978 Pontiac Grand Lemans stands as an emblematic figure from an era when automakers were compelled to innovate amidst changing landscapes. It represents a harmonious blend of style, comfort, performance, and practicality—a formula that has allowed it to maintain its appeal among classic car aficionados. Whether cruising down boulevards or gracing local car shows, this enduring classic continues to turn heads and stir nostalgia among those who appreciate automotive history.
1978 Pontiac Grand Lemans Catalog of Parts
1978 Pontiac Grand LeMans 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.
1978 Pontiac Grand LeMans Hood and cowl seal-CS 13-GHood and cowl seal. Fits '78-'88 GM A-body, A-Special (A-SPEC) and G-body 2-door hardtop coupes with rear wheel drive (RWD). Dual-durometer extrusion with flexible metal core. Easy to install; fits over pinchweld. Replaces OEM# 20255857 and 25505704. Made in the USA. Each.
1978 Pontiac Grand LeMans Front molded door seals. For 4-door sedan and wagon-LM 16-SFront molded door seals. For 4-door sedan and wagon. Replaces OEM#'s 20008186/7. Pair. R&L.
1978 Pontiac Grand LeMans Rear molded door seals-LM 16-S/RRear molded door seals. Fits 4-door sedan only (except Ciera). Replaces OEM#'s 20008190/1. Pair. R&L.
1978 Pontiac Grand LeMans Rear molded door seals. Fits 4-door wagon only, with RWD-LM 16-S/WRear molded door seals. Fits 4-door wagon only, with RWD. Pair. R&L.
1978 Pontiac Grand LeMans Trunk Liner. Loose weave, jet black. 50" wide-M 30Trunk Liner. Loose weave, jet black. 50" wide. Sold by the foot
1978 Pontiac Grand LeMans Brake Master Cylinder Cover Seal. Replaces OEM #5470861-RP 2-EBrake Master Cylinder Cover Seal. Replaces OEM #5470861. 5" X 2-1/2". Each
1978 Pontiac Grand LeMans Glove Box Bumper. Each-SB 78-AGlove Box Bumper. Each
1978 Pontiac Grand LeMans 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
1978 Pontiac Grand LeMans Window sweeper kit-WC 2003-78Window sweeper kit. '78-'87 El Camino, GMC Caballero; '78-'83 Malibu; '78-'81 Grand Am 2-door coupe. Left and right inner and outer sweeps with chrome bead, without reveal moldings. Replaces OEM#'s 20208434, 20672574 and 20672575. 4-piece set.
1978 Pontiac Grand LeMans Rear Quarter Window Molding Clip. Made of steel-WF 204Rear Quarter Window Molding Clip. Made of steel. 3/4" x 1-3/8". Each
1978 Pontiac Grand LeMans Quarter Window Reveal Molding Clip. Made of Steel-WF 205Quarter Window Reveal Molding Clip. Made of Steel. 1-3/8" X 11/16". Each
1978 Pontiac Grand LeMans Rear Window Reveal Molding Clip. For Station Wagons-WF 208Rear Window Reveal Molding Clip. For Station Wagons. Made of steel. 5/8" x 3/4". Each
1978 Pontiac Grand LeMans Windshield Reveal Molding Clip. Made of steel. 13/16" x 1"-WF 209Windshield Reveal Molding Clip. Made of steel. 13/16" x 1". Each
1978 Pontiac Grand LeMans Rear Windshield Reveal Molding Clip. Made of steel-WF 211Rear Windshield Reveal Molding Clip. Made of steel. 15/16" X 3/4". Each
1978 Pontiac Grand LeMans Lower Side Window Reveal Molding Clip. Made of nylon-WF 214Lower Side Window Reveal Molding Clip. Made of nylon. 1-1/4" x 3/4". EachWhy Choose Metro?
For over 100 years, Metro Moulded Parts has been the pinnacle of quality in classic car restoration parts. Our commitment to precision and authenticity in every component ensures a perfect fit and an OEM-level appearance.
- Expert Craftsmanship & Quality: Each part is a testament to our dedication to reliability and perfection, crafted from original designs and thoroughly tested.
- Advanced Technology: We use cutting-edge techniques to create flawless, long-lasting parts that surpass others in performance.
- SuperSoft Sponge – The Ultimate Door Seal: Not only are our door seals 30% softer than competitors', but they're also guaranteed to never leak. They effectively reduce wind and road noise, enhancing your classic car's comfort and driving experience.
- Proudly American: Our parts are a product of American craftsmanship, made in the USA with a spirit of excellence and heritage.
- Unrivaled Warranty: We back our products with a 30-year industry-leading warranty, a testament to our confidence in their quality.
Join us in preserving the legacy of classic cars with parts that are crafted for perfection, not just made.