Holley EFI LS3 Single Plane Split-Design Race Intake Manifolds #300-290

Crafted for optimal performance, the Holley EFI LS single plane split-design race intake manifolds cater to the needs of high performance and racing engines. With a 2-piece split design, previously only available on the priciest race intakes, these manifolds are compatible with GM LS Gen III engines featuring cathedral port heads and have a displacement of 5.3 to 6.2 liters. Depending on the engine combination, they can reach maximum speeds of 6,000 to 7,000 rpm. The single-plane design ensures peak performance across the rpm spectrum, while the split feature allows for easy access to the internal plenum and port surfaces for custom porting and matching. Thanks to the shoulder bolt locators and O-ring seal, reassembly is a breeze, providing a precise fit every time.