Holley Efi Sbc 4150 Single Plane Fuel Injection Intake Manifold

The innovative single-plane EFI intake manifold is meticulously crafted to deliver a broad RPM powerband, catering to high-performance street/strip engine applications with a maximum engine speed of 7500 RPM. Tailored to seamlessly integrate with 4150 Style Throttle Body EFI systems, such as the Holley 4150 style flange Universal Throttle Bodies, these manifolds blend stock hardware compatibility with enhanced performance features.

Standout features include an updated plenum divider area, a more compact overall height (1" shorter than most single plane manifolds), and the flexibility of two distributor clamp locations. The air/fuel passages' isolated design contributes to increased charge air density and overall performance. Notably, the fuel injector bores boast back-cut exits in the runners, optimizing fuel atomization by aligning the injectors with the intake runner airflow angle.

Providing ease of installation, the manifold comes with a set of black-coated fuel rails and a rail bracket assortment. Designed for 4150 Style Throttle Body EFI applications on 1957-86 262-400cid Small Block Chevrolet engines and SBC engines equipped with 1987-91 L98 aluminum Corvette cylinder heads (non-EGR applications), these manifolds are versatile. They are also compatible with any SBC engine equipped with aftermarket cylinder heads featuring a standard port flange opening and mounting bolt locations.

Additional components, such as the 20-86 Throttle Cable Bracket and 20-87 Kickdown Cable Bracket, are also available for enhanced functionality.

Features:

• Single Plane Design with Isolated Plenum
• 4150 Square Bore Mounting Flange
• Power band: 2500-7500 RPM
• Height: Front 4.18", Rear 5.28"
• Port Size: 1.92” Height, 1.20" Width
• Lower Throttle Body Mounting Height for Improved Hood Clearance
• Holley Laser-Etched Logos on Black Coated Fuel Rails and Bracket Assortment
• Fuel Injectors Not Included
• Fuel Rail Designed for Maximum Throttle Lever Clearance