1971 Pontiac Firebird Formula
The 1971 Pontiac Firebird Formula was a key model in the second generation of the Firebird, which Pontiac had introduced in 1970 with a complete redesign. This generation featured a more aerodynamic body style, characteristic of the early 1970s American muscle cars.
The Firebird Formula was designed as a performance-oriented trim, sitting between the base Firebird and the high-performance Firebird Trans Am. It offered a blend of sports car handling and muscle car power, attracting buyers who wanted both performance and style.
For the 1971 model year, the Firebird Formula was available with several V8 engine options. The standard engine was a 350 cubic inch (5.7L) V8 with 250 horsepower.
The most powerful engine available for the 1971 Firebird Formula was the 455 cubic inch (7.5L) V8. This engine came in two configurations: the base 455 with a four-barrel carburetor and the 455 High Output (HO), which was a more performance-focused engine.
The 455 HO was rated at 335 horsepower and 480 lb-ft of torque, providing robust acceleration and making it a highly sought-after option for muscle car enthusiasts.
The 1971 Firebird Formula featured design elements such as a twin-scooped hood, which was functional with the Ram Air system, and an optional rear spoiler for a sportier appearance. The car also benefited from a heavy-duty suspension setup that improved handling and driving dynamics.
Despite the introduction of lower compression ratios to comply with new regulations for unleaded fuel, which slightly decreased power outputs, the 1971 Pontiac Firebird Formula with the 455 engine remained a popular choice for those seeking a potent and stylish muscle car.
Today, these models are considered rare and desirable classics, especially given that 1971 marked the final year before more significant power reductions due to stricter emissions regulations.
Credit: Mecum
