BBC EFI R/P Intake Manifold w/4150 Flange

The BBC EFI R/P Intake Manifold w/4150 Flange from HOLLEY is designed specifically for big-block Chevy engines that utilize modern electronic fuel injection systems. This aluminum manifold serves as a bridge between classic BBC performance and contemporary EFI technology, making it an ideal upgrade for older carbureted engines or a retrofit for existing builds. Whether you are constructing a street machine, restomod, or high-performance crate engine, this manifold provides the intake velocity and distribution necessary for consistent power across the RPM range.

The 4150 flange mounting pattern ensures compatibility with a wide variety of EFI throttle bodies and fuel injection systems, offering a versatile platform for custom tuning and engine management solutions. The runner design is optimized for efficient air and fuel mixing, while the cast aluminum construction delivers strength without excessive weight, which is crucial for maintaining proper weight distribution in high-output applications. The reverse-plenum configuration indicated by the R/P designation enhances cylinder charge distribution, which is particularly advantageous for BBC applications where runner length and plenum design significantly affect mid-range torque and peak horsepower.

Engine builders and mechanics favor the BBC EFI R/P Intake Manifold for its ability to integrate modern EFI technology into street engines, bracket racing platforms, and restorations without compromising traditional BBC power characteristics. This manifold is an excellent choice for those looking to enhance performance while ensuring reliability and tuning flexibility. Its design and construction make it a valuable addition to any high-performance engine build.