Intake Manifold Single Plane - Carb GM LS3/L92

The Holley 300-131 Intake Manifold Single Plane Carb is purpose-built for GM LS3 and L92 engine platforms seeking maximum performance gains through optimized air delivery. This single-plane design targets enthusiasts and professional builders who demand elevated RPM efficiency, aggressive throttle response, and improved volumetric efficiency across the power band. Whether you're building a street-strip hybrid, competition engine, or high-revving naturally aspirated power plant, this manifold is essential for any serious LS platform upgrade.

Single-plane manifold designs consolidate runner lengths and optimize plenum volume to deliver fuel and air mixture uniformly across all cylinders at higher engine speeds, unlike dual-plane alternatives that prioritize low-end torque. The Holley engineering on this unit leverages decades of carburetor intake development, ensuring smooth internal passages that minimize turbulence and promote laminar flow characteristics. Constructed to exacting tolerances and weighing 14.12 pounds, this manifold is designed specifically for LS3/L92 head bolt patterns and gasket surfaces.

Builders choosing carbureted induction over fuel injection will benefit from this manifold's performance characteristics, which are tailored for high RPM applications. Its compact footprint—14.4 x 7.15 x 22.55 inches—fits tight engine bay configurations without compromising runner geometry or plenum design. This makes it an ideal choice for those looking to maximize the potential of their GM LS3 or L92 engine.