1. Chevrolet Performance introduced the E-Rod emissions-compliant crate engine program a few years back. It was groundbreaking with the ability to legally swap these engines into many rigs that are required to pass smog tests. When I saw the LSA supercharged version at last year’s SEMA show I was drooling and dreaming of big power under the hood of an off-road truck. Chevy currently offers LC9 5.3L and LS3 6.2L engines in this E-Rod variant in addition to the LSA.