The Speedmaster 1-148-001-02 is a complete downdraft 8-stack EFI intake manifold system designed specifically for Chevy Big Block 454 engines. This satin-finish system delivers the classic velocity-stack look of individual throttle bodies while offering the precision and drivability of modern electronic fuel injection, making it an ideal centerpiece for high-performance street and show builds.
Sold as a complete system, this kit includes everything needed to convert your BBC 454 to downdraft 8-stack EFI in a cohesive, ready-to-install package. The satin finish provides a clean, aggressive appearance under the hood. Always verify compatibility with your specific engine configuration before installation.