GM LS Victor Jr. Intake Manifold - 4150/EFI

The Edelbrock GM LS Victor Jr. Intake Manifold (Part #28455) is a single-plane competition EFI intake designed for LS-series engines including the L76, L92, and LS3. This aluminum manifold is engineered to deliver high-velocity air charge distribution and maximum volumetric efficiency in naturally aspirated LS applications. The Victor Jr. features Edelbrock's proven single-plane design, which concentrates runner velocity for aggressive throttle response and peak power output across the RPM band.

Built from aluminum in natural finish, this manifold accepts a 4150-flange EFI fuel injection system, providing direct compatibility with modern fuel management while maintaining the structural integrity required for sustained high-RPM operation. The single-plane architecture minimizes plenum volume to maximize air velocity through the runners, a critical factor for carbureted and EFI conversions targeting street performance or track duty. Weighing 17.36 lbs, the compact footprint (15.4 x 7.6 x 24.05 inches) allows straightforward installation without requiring extensive engine bay modifications on most LS-equipped platforms.

This intake manifold is suited for LS engine swaps, street machines, weekend bracket racers, and restomod builds where peak power and responsive throttle characteristics matter. The EFI flange design accommodates fuel injection systems that require precision tuning and dynamic air delivery. Buyers integrating LS power into classic vehicles or modernizing carbureted platforms will find the Victor Jr.'s combination of efficient airflow and compact mounting footprint addresses the core challenge of extracting maximum performance without sacrificing bolt-on simplicity.