The Holley Single-Plane Race intake manifold represents a cutting-edge design, meticulously crafted with a focus on delivering unparalleled performance. Distinguishing itself with a race-bred, two-piece split feature, previously exclusive to the most premium race intakes, this manifold is tailored for GM LS Gen III engines equipped with LS3/L92 heads. Compatible with 4150 style square bore flanged carburetors or throttle body EFI, it stands as a pinnacle of engineering excellence.
The LS Race single-plane intake manifold is purpose-built for high-performance and racing engine applications within the 5.3 to 6.2+ liter displacement range. Engineered for maximum engine speeds of 6000-7000 rpm (depending on the engine combination), its single-plane design optimizes performance across the entire RPM spectrum, ensuring peak efficiency up to 7000 rpm.
Featuring an innovative split design, the Holley LS Race manifold allows effortless disassembly for direct access to internal plenum and port surfaces. This design facilitates seamless custom porting and matching, aided by shoulder bolt locators and O-ring seal, ensuring straightforward and precise reassembly.
Technical Data:
- A-B Height: 7.20" (0° carb flange angle)
- Port Size: 2.59" Height x 1.28" Wide
- Throttle Body Flange: Standard 4150 for up to 1-3/4" diameter throttle bores
- As-Cast Runner Cross-Sectional Area: 4.5 in² at the runner entry tapered to 3.2 in² at the flange exit
Features:
- Maximum performance race design with hood clearance consideration
- Lighter than other split race intakes
- Split feature facilitates easy porting efforts
- 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
- Billet Fuel Rails and rail mounting hardware included
- Local Pickup Available:
- No
- Local Delivery Available:
- No
- Additional Handling:
- No
