Holley Single Plane EFI Split-Design Race Intake Manifold- GM LS3/L92 - 300-290
$779.95
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Technical Data:
As-Cast Runner Cross-Sectional Area - 4.5 in² at the runner entry tapered to 3.2 in² at the flange exit
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.
A-B Height - 7.20" (0° carb flange angle)
The LS Race single-plane intake manifold was designed for hi-performance/racing engine applications, 5.3 to 6.2+ liter displacement, and maximum engine speeds of 6000-7000 rpm, depending on the engine combination. This single-plane design provides optimal performance across the RPM spectrum while providing maximum performance up to 7000 rpm.
Throttle Body Flange - Standard 4150 for up to 1-3/4" diameter throttle bores
Port Size- 2.59" Height x 1.28" Wide
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.
Holley Single Plane EFI Split-Design Race Intake Manifold- GM LS3/L92 - 300-290
$779.95
Features:
- Split feature making porting efforts easy!
- Lighter than other split race intakes
- 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 split
- 33 to 50% the price of other split race intakes
- Billet Fuel Rails and rail mounting hardware included.
- Maximum performance race design with hood clearance consideration
Product Specifications:
- Product Details: EFI single plane split-design race intake manifold. Fits all GM LS Gen III or IV engines equipped with LS3/L92 cylinder heads
- Barrels: 4
- Basic Operating RPM Range: 3500-8000 RPM
- Carburetor Flange: Square/4150
- Carburetor Quantity: 1
- Carburetor Studs Included: No
- CNC Ported: No
- Color: Silver
- Construction: Cast
- Cylinder Head Port Shape: Rectangle
- Deck Height: 9.24 IN
- EGR Port: No
- Engine: GM LS3/L92
- Flange Style: 4150 Square Bore
- Front Maximum Height: 7.32 IN
- Fuel Injectors Included: No
- Fuel Rail(s) Included: No
- Fuel System Type: EFI
- 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
- Part Type: Engine Intake Manifold
- Plenum Finish: Natural
- Product Type: Intake Manifold
- Rear Maximum Height: 7.32 IN
- Recommended Use: Forced Induction
- Removable Runners: No
- Removable Top/Lid: No
- Single Or Dual Plane Type: Single Plane
- Throttle Body Bore Diameter: 3.6
- Throttle Body Gasket Included: No
- Throttle Body Included: No
- Vacuum Ports: Yes
Installation Notes:
Two different length fuel rail bracket sets are included; the long brackets are for mounting the fuel rails at a height for Bosch style EV1 type fuel injectors. The short brackets are for mounting the fuel rails at a height for GM OE LS7 fuel injectors. When using the OE GM LS7 injector, the O-ring on the outlet (intake manifold) end of the injector must be changed to the O-ring supplied in the short bracket pack.