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Optimize Airflow with Holley EFI 4150 Carb Hats

The Holley EFI 4150 Carb Hat is engineered for enthusiasts looking to maximize induction efficiency in forced induction or blow-through carburetor setups. Designed with a standard 5-1/8 inch flange, this plenum provides a smooth, consistent air transition, ensuring your engine breathes optimally under boost. Crafted from high-quality aluminum with a natural finish, it offers both durability and a clean, professional aesthetic for any engine bay.

Key Features and Technical Specifications

• Design: 4150 series carburetor plenum for superior airflow management.
• Porting: Integrated 1/8 inch NPT port for convenient sensor or vacuum line access.
• Construction: Lightweight yet robust aluminum build designed to withstand high-pressure environments.
• Fitment: Universal 5-1/8 inch carburetor flange compatibility.
• Finish: Natural aluminum finish for a classic race-ready look.

Whether you are building a custom turbo system or upgrading an existing supercharger setup, the Holley EFI 4150 Carb Hat delivers the reliability and performance required for high-horsepower applications. Its precision engineering minimizes turbulence, allowing for more stable air-fuel ratios and improved throttle response. When you need premium components for your next build, trust the selection available at GGCRACING.