Holley Single Plane Split-Design Race Intake Manifolds for LS Engines

Holley Single Plane Split-Design Race Intake Manifolds for LS Engines

October 11, 2018
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Holley/MSD has released their Single Plane Split-Design Race Intake Manifolds, which have been developed specifically for high-performance and race Gen III LS engines with cathedral port heads and 4150-style square-bore flanged carburetors or throttle bodies. Their special two-piece split configuration allows easy disassembly for direct access to internal plenum and port surfaces and makes custom porting and matching a snap – a feature usually found only on the most expensive race intakes.

Holley LS Engine Carb Manifold

Lighter and less than half the price of other split race manifolds, Holley Single Plane Split-Design Race Intake Manifolds are ideal for 5.3L to 6.2L+ displacement applications and rock-solid up to 7000 rpm. The single-plane design provides extra hood clearance and optimal performance across the entire RPM band, and captured O-ring seals at the split and all eight head ports make reassembly simple and precise.

Holley Split Intake Manifold
Holley Single Plane Split-Design Race Intake Manifolds for LS Engines
Holley GM LS Intake Manifold

Technical Data: 

  • A-B Height – 7.32″ (0° carb flange angle) 
  • Port Size– 3.28″ Height x 1.10″ Wide 
  • Carburetor Flange – Standard 4150 for up to 1-3/4″ diameter throttle bores
  • As-Cast Runner Cross-Sectional Area – 3.5 in² at the runner entry tapered to 2.9 in² at the flange exit

Features:

  • Maximum performance race design with hood clearance consideration
  • Lighter than other split race intakes
  • Split feature making porting efforts easy!
  • 33 to 50% the price of other split race intakes
  • Captured O-ring seals at head ports and split
  • Vacuum Port options include (2) 1/8, (1) 1/4, and (1) 3/8, NPT ports at the carb flange

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