The Most Powerful Small Block V8 Engines of the 1970s

In the 1960s, big-block engines were the top choice for muscle cars because they provided a lot of power by increasing engine size. However, these heavy engines made handling more difficult. By the 1970s, advancements in engine technology allowed smaller, lighter engines to deliver similar power. Here’s a look at the most powerful small-block V8 engines from the 1970s.

The King of Torque: Buick 350 High-Performance

Buick’s 350 ci small block V8, available in the Skylark model, stood out for its torque. The high-performance version, with a 10.25:1 compression ratio, produced 315 horsepower and 410 lb-ft of torque.

Key features included an aluminum intake, HEI electronic ignition, and aluminum heads from the GSX’s 455 ci V8. This engine, along with the Ram Air hood, provided a significant performance boost, making it the torquiest small-block V8 of the 1970s.

Oldsmobile’s Torquey Small-Block: The L74

Oldsmobile offered the L74 350 ci V8 in its Cutlass models. With a compression ratio of 10.25:1, it produced 310 horsepower and 390 lb-ft of torque. Despite being overshadowed by the W31 variant, the L74 was designed for torque, making it a solid choice for muscle car enthusiasts. The engine was available in various models, including the Cutlass Supreme and the Vista-Cruiser station wagon.

Ford’s High-Torque 351 V8

Ford’s 351 ci V8, available in the Mustang Mach 1 and Torino GT, was another powerful small block from the 1970s. The four-barrel version featured polyangle wedge heads, canted valves, and an 11.0:1 compression ratio.

It produced 350 horsepower and 380 lb-ft of torque, with enhancements like heavy-duty hydraulic lifters and a dual-exhaust system. This engine required premium fuel but offered impressive performance and handling improvements.

For those seeking a powerful and compact engine from the 1970s, the Buick Skylark GS350, Oldsmobile L74, and Ford 351 are excellent choices. Each engine delivered significant torque, demonstrating that small-block V8s could compete with their larger counterparts in the muscle car era.