Description
Holley EFI LS3/L92 Split Single Plane Race Intake Manifold, The manifold will fit GM LS Gen III engines with LS3/L92 heads and are intended for 4150 style square bore throttle body EFI. 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.
- Maximum performance race design with hood clearance consideration
- 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.
- Power Band: 3500-8000RPM
- Holley Intake Manifold
- Single-Plane EFI Split Design Race
- Square Bore
- Single Plane
- Aluminum
- Natural
- GM LS-Series
- Kit
Instructions for Part# 300-290
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.
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