The 1970 Chevelle came with a variety of big block engine options, ranging from the 396 to the monstrous 454. Here are some of the most notable engines:
- 396/325 hp: This was the base big block engine for the 1970 Chevelle. It featured a hydraulic camshaft, 10.25:1 compression ratio, and a Rochester 4-barrel carburetor. It produced 325 horsepower and 410 lb-ft of torque.
- 396/350 hp: This engine was a step up from the base engine and featured a solid lifter camshaft, 11.0:1 compression ratio, and a Holley 4-barrel carburetor. It produced 350 horsepower and 415 lb-ft of torque.
- 396/375 hp: This engine was the high-performance option for the 1970 Chevelle. It featured a solid lifter camshaft, 11.0:1 compression ratio, and a Holley 4-barrel carburetor. It produced 375 horsepower and 415 lb-ft of torque.
- 454/360 hp: This was the base engine for the SS 454 Chevelle. It featured a hydraulic camshaft, 10.25:1 compression ratio, and a Rochester 4-barrel carburetor. It produced 360 horsepower and 500 lb-ft of torque.
- 454/450 hp: This engine was the high-performance option for the SS 454 Chevelle. It featured a solid lifter camshaft, 11.25:1 compression ratio, and a Holley 4-barrel carburetor. It produced 450 horsepower and 500 lb-ft of torque.
Overall, the 1970 Chevelle big block engines were some of the most powerful and sought-after engines of their time, and they continue to be popular among muscle car enthusiasts today.