The new Holley Single-Plane Race intake manifold is designed with maximum performance in mind. Featured is a two-piece split design that provides access for all levels of porting and modification.
With shoulder bolt locators and O-ring seal, disassembly & reassembly is simple and precise. The Ls Race single-plane intake manifold is designed for hi-performance/racing engine applications, 5.3 to 6.2+ liter displacements, N/A or with power adders.
The large volume 4500 plenum and optimized runners provide airflow potential for Hi-RPM engines with max power at 7500-8000+ RPM. The manifold with An-8 fuel rails fits Gm Ls Gen Iii engines with cathedral port heads and has a 4500 Dominator style carb flange for carburetors, EFI throttle bodies, or EFI throttle body elbows, and is configured with a Ls Map sensor port along with other NPT plenum vacuum or air-temp sensor ports.
Features and Benefits:
- Lighter than other split race intakes Split feature making porting efforts easy! Maximum performance 4500 Dominator flange race design with hood clearance consideration Two versions available: EFI type - Billet Fuel Rails and rail mounting hardware included, or Carbureted / Sniper EFI 4500 Tbi style Vacuum Port options include (2) 1/8, (1) 1/4, and (1) 3/8, NPT ports at the carb flange Captured O-ring seals at head ports and plenum split 33 to 50 percent the price of other split race intakes
Associated Comments:
- Includes mounting bolts & washers. Also includes O-ring cylinder head mounting flange gaskets for an OEM style seal.
- Kit does not work with factory fuel rails and requires the use of Holley Fuel Rail Kit P/N 534-219. Note: The EFI versions of the Ls Hi-Ram intake manifold and fuel rail are designed to accept Bosch Style Ev-1 or Magneti Marelli Pico fuel injectors.
Details:
- Barrel Quantity: 4.0
- Basic Operating RPM Range: 2500-7500 RPM
- Cnc Ported: No
- Carburetor Flange: Dominator/4500
- Carburetor Quantity: 1.0
- Carburetor Studs Included: No
- Color: Natural
- Construction: Cast
- Cylinder Head Port Shape: Cathedral
- Deck Height: 9.24 Inch
- Egr Port: No
- Engine: Gm LS1/LS2/LS6
- Flange Style: 4500
- Front Maximum Height: 7.32 Inch
- Fuel Injectors Included: No
- Fuel Rail(s) Included: No
- Fuel System Type: Carbureted
- Gasket Or Seal Included: No
- Grade Type: Performance
- Intake Port Gasket(s) Included: No
- Manifold Type: Split Single Plane
- Material: Aluminum
- Nitrous Bung(s) Included: No
- Plenum Finish: Natural
- Rear Maximum Height: 7.32 Inch
- Removable Runners: No
- Removable Top/Lid: No
- Single Or Dual Plane Type: Single Plane
- Throttle Body Bore Diameter: 5
- Throttle Body Gasket Included: No
- Throttle Body Included: No
- Vacuum Ports: Yes
- Warranty: Manufacturer's Limited 90 Day Warranty
Holley Single Plane 4500 Carbureted Split-Design Race Intake Manifold GM LS1/LS2/LS6 Fits GM LS1/LS2/LS6 Carbureted with Cast Finish Holley 300-295
Specifications:
| Country of Origin | USA |
| Sold As | Each |
| UPC | 90127082249 |
| Availability | Available |
| Universal | Yes |