Intake Manifold, Holley, BB Chevy, Standard Deck, EFI

Intake Manifold, Big-Block Chevy, Rectangular-Port, Single-Plane EFI, Satin, Holley

High-rise, single-plane EFI intake manifold for rectangular-port big-block Chevrolet V8 engines.

Maximize the performance potential of your big-block Chevrolet V8 with this Holley EFI intake manifold, designed for compatible 396–502 cubic-inch engines equipped with rectangular-port cylinder heads. Engineered specifically for multi-port electronic fuel injection systems, this high-rise, single-plane manifold features a cast aluminum construction with a satin finish and an open-plenum design that promotes airflow distribution throughout the engine's operating range. Its performance-oriented runner configuration is designed to support increased horsepower at higher engine speeds, making it well suited for modified street engines, racing applications and custom fuel injection conversions. Holley specifies a 2,500–7,000 RPM operating range for applications requiring strong midrange and upper-RPM performance. The manifold features a 4500-series square-bore throttle body mounting flange and provisions for electronic fuel injection, allowing the use of compatible Holley EFI components. Designed for standard-deck Chevrolet big-block engines, it incorporates rectangular intake ports measuring 2.30 inches high by 1.60 inches wide. The manifold measures 7.13 inches in height at both the front and rear, providing the elevated plenum configuration associated with high-performance single-plane intake designs. Compatible fuel rails, throttle bodies and additional EFI components can be selected separately to complete the installation, providing a foundation for a customized fuel injection system.

Features • Designed for compatible 396–502 cubic-inch big-block Chevrolet V8 engines • Requires rectangular-port cylinder heads • Designed for standard-deck engine blocks • High-rise, single-plane intake manifold design • Designed for multi-port electronic fuel injection systems • Cast construction with satin finish • 4500-series square-bore throttle body mounting flange • Operating range of 2,500–7,000 RPM per current Holley specifications • Intake port openings measure 2.30" high by 1.60" wide • Front and rear manifold heights measure 7.13" • Accepts Holley 2000 CFM throttle body #112-538 • Compatible with separately available Holley fuel rail kit #9900-173 • Recommended intake gasket set: Mr. Gasket #5828 • Intended for performance-oriented engine builds and EFI conversions