Holley EFI 300-290BK Single Plane Split Design Intake Manifold GM LS3/L92 Black

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. This 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
• 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
• Billet Fuel Rails and rail mounting hardware included.

   

• Engine - GM LS3/L92
• Flange Style - 4150 Square Bore
• Front Height - 7.32"
• Manifold Type - Split Single Plane
• Rear Height - 7.32"
• Recommended Use - Forced Induction
• RPM Power Band - 3500-8000 RPM