1. "*307*" Cubic-Inch Small-Block V8: This engine was also known as the "Z28" engine and was rated at 230 horsepower. It was a favorite among enthusiasts and featured a four-barrel carburetor, hydraulic camshaft, and cast-iron cylinder heads.
2. "*350*" Cubic-Inch Small-Block V8: The 350 engine was offered in several versions, ranging from 255 to 300 horsepower. The popular "LT-1" version featured a four-barrel carburetor, high-lift camshaft, and was rated at 350 horsepower.
3. "*396*" Cubic-Inch Big-Block V8: The 396 engine was available in various options, including the famed "LS-6" version, which produced an impressive 425 horsepower. The 396 featured a four-barrel carburetor, mechanical camshaft, and high-performance components.
4. "*427*" Cubic-Inch Turbo-Jet V8: The 427 engine represented Chevrolet's muscle car dominance. It was offered in the legendary Chevelle SS and Camaro SS and produced 430 horsepower. The Turbo-Jet engine featured a four-barrel carburetor, solid-lifter camshaft, and forged internals.
5. "*454*" Cubic-Inch Turbo-Jet V8: The 454 engine, also called the "LS-5," was the largest displacement engine available in Chevrolet's 1970 cars. It produced 390 horsepower and was favored for its torque and towing capabilities.
6. "*Straight-Six Engines*": Chevrolet offered straight-six engines as standard equipment in some of its base models. These engines were reliable and fuel-efficient but did not offer the performance of the V8 engines.
7. "*Vega-Inline*" Four-Cylinder: The Vega-Inline four-cylinder engine was introduced in the Chevrolet Vega, which went on sale in the latter part of 1970. It was the first new four-cylinder engine developed by Chevrolet since the early 1960s.
It's worth noting that the availability of specific engines could vary depending on the car model, trim level, and region. Also, due to emissions regulations, the power ratings of some engines were reduced in 1970 compared to previous years.
