The cheapest big block-equipped Corvette on the used market today is the 1974 C3 version, which came with the option of a thumping 454 ci LS4 V8 under the ... the time of its sale through Street ...

Add HotCars to your Google News feed. Other rare big-block Chevy motors include the powerful 454 LS6 V8 engine. The 454 was introduced in 1970, as the LS5 that made 390 hp and 500 lb-ft.