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Holley Releases New Single Plane Split Intake Manifolds for GM LS3/L92!

By: Skylar Drake11/11/2019 < Back to Blog Home
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Holley has expanded their line-up of race oriented split-design intake manifolds by releasing two new LS3/L92 versions! A carbureted 4150 flange version gives consumers the ability to go old school and provide an option for a high-winding performance intake that doesn't break the bank! Meanwhile the EFI version also includes fuel rails and mounting hardware allowing racers to use a variety of throttle body and intake elbow combinations. Read on to learn more!


The new Holley Single-Plane Race intake manifold were designed with performance in mind. They feature a race bred, two piece split feature that was previously only found on the most expensive race intakes. The manifold will fit GM LS Gen III engines with LS3/L92 heads and are intended for 4150 style square bore flanged carburetors or throttle body EFI.
  • Captured O-ring seals at head ports and the split.
  • Vacuum port options include (2) 1/8, (1) 1/4, and (1) 3/8, NPT ports at the carb flange.
  • Billet fuel rails and rail mounting hardware included.
  • 33 to 50% the price of other split race intakes!


  • The LS Race single-plane intake manifold was designed for racing engine applications, 5.3 to 6.2+ liter displacement and high-winding performance! This single-plane design provides optimal performance across the RPM spectrum while providing maximum engine speeds up to 7000 rpm, depending on the engine combination.
  • Maximum performance race design with hood clearance consideration.
  • Lighter than other split race intakes.
  • The Holley LS Race manifold incorporates a split feature, which allows disassembly of the intake for direct access to internal plenum and port surfaces, making custom porting and matching a snap. With shoulder bolt locators and O-ring seal, reassembly is simple and precise!


    For more information on the products you see listed here, check out the "Featured Recommendations" below. To see other single plane intake offerings (including 4150 Carb, 4500 Carb, EFI for a variety of engines), check out the product page HERE.

    Featured Products
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