The base V8 (standard on Safari wagons and optional on other models) was Pontiac's new 301 cubic-inch engine based on the same V8 engine block as other Pontiac V8s but utilized many lightweight components. Optional V8s were pared down to Pontiac-built 350 and 400 four-barrel powerplants. The three-speed manual was the standard transmission on V6 models, while the Turbo Hydra-matic was optional and the only transmission available with the V8 engines. Those drivetrain offerings were available in 49 states.
In California, Pontiac V8s were not offered for 1977 due to the inability to meet that state's more stringent regulations. In the Golden State, the Buick V6 was standard on most models but the V8 engines offered there were Oldsmobile's 350 and 403 four-barrel engines. Turbo Hydra-matic was the only transmission offered in California.
A sporty/performance model based on the LeMans Sport Coupe called the Pontiac Can Am was a one-year only offering for 1977. The Can Am came standard with the 400 four-barrel V8 in 49 states or the Olds 403 four-barrel in California, along with Turbo Hydra-matic transmission, a Grand Prix instrument panel and console, along with Strato bucket seats, and rear spoiler.
For the final year of the Colonnade LeMans models, they were joined by newly downsized B-body Catalina and Bonneville full-sized cars, which weighed a few pounds less than the "intermediates" and rode on the same 116-inch wheelbase length as the LeMans sedans and Safari wagons and also had similar dimensions as far as length and width were concerned. The downsized big cars of 1977, would be followed up with downsized intermediates for 1978 including the LeMans/Grand LeMans and the personal-luxury Grand Prix coupe.
1977 History and Identification
Formal opera window styling was featured on the Style Number G37 Grand LeMans Coupe. It had a suggested retail of $4,603 and weighed in at 3,697 pounds. Vinyl, landau, and padded landau top treatments were available options at prices of $111 to $180. The perforated DeLuxe wheel covers were a $34 accessory and the bumper guards cost $19. A console was available for cars sold with bucket seats and it had a price of $75. Assemblies for this model peaked at the 7,581 units level. The three-speed manual gearbox was still standard, but most cars had Turbo Hydra-Matic. Only 0.62 percent of all 1977 LeMans were stick-shift cars.