A “dressed” small-block Chevy (production cast-iron block and ... through either the production line or the service package parts program. The original aluminum blocks had a 3⅞-inch bores ...

BluePrint Engines uses new parts designed in-house to produce crate engines compliant to Chevy specs. The first entrant on our list is the BluePrint Engines 400-cubic-inch GM small block ...

For the ZZ6, Chevy is working to improve the Small Block's high-rpm performance ... and a few other parts but lacks carburetor and accessories. Conversely, the Turn Key option has everything ...