Holley LS1 Single Plane EFI Intake Manifold

Holley Single Plane EFI Split-Design Race Intake Manifold – Black High-Performance Intake for GM LS1/LS2/LS6 Engines Two-Piece Split Design – Allows easy access to internal plenum and ports for custom porting and matching. Optimized for 6000-7000 RPM – Designed for high-performance racing applications with 5.3 to 6.2+ liter engines. 4150 Square Bore Flange – Compatible with carburetors or throttle body EFI systems. Lightweight Cast Aluminum – Durable construction suitable for various power adders. Cathedral Port Compatibility – Fits GM LS Gen III engines with LS1/LS2/LS6 style heads. Sleek Black Finish – Provides a professional appearance in the engine bay.