However, the biggest Chevy crate engines include big block varieties ... for production vehicles was the 496-cubic-inch 8.1L Vortec. The 8100, as it's sometimes called, was the last big block ...

Take, for example, the L8T crate engine used in 2500 and 3500 HD models ... But, ever since the Vortec 8100 496 disappeared from RPO sheets, the big-block has been gone from stock cars and ...