That doesn't mean we have to keep buying new and more powerful cars – that's where crate engines come in. ...

Through generations and many, many variants, the small-block recipe Chevy ... enthusiast's go-to engine swap. Nowadays, LS ...

The uppercase X indicates a GM Performance Parts crate engine ... with a 454-ci big block from the 1970s and the Iron Duke four-pot engine, LS6 is best described as the LS1's punchier sibling.

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