HOLLEY DUAL PLANE INTAKE - GM LS1/LS2/LS6

The HOLLEY DUAL PLANE INTAKE - GM LS1/LS2/LS6 is a dual plane carbureted intake manifold designed for GM LS engines. It delivers strong low-end torque with power up to 6,500 RPM, making it ideal for street applications using carburetors or throttle body EFI. The O-ring cylinder head mounting flange gaskets ensure an OEM-style seal and easy installation.

Key Features

1500-6500 RPM power band for broad torque curve
4150 square bore carburetor mounting flange
Optimized runner layout with constant cross-sectional area
Low carb flange height fits vehicles with minimal or no hood modifications
Cast aluminum construction for light weight and consistent quality
Includes Viton® O-ring mounting flange gaskets for OEM-style seal

Fitment

GM LS1, LS2, and LS6 engines
Carbureted or throttle body EFI street applications

Specifications

Weight: 14.56 lbs
Height (front): 5.07" from front lifter valley cover to carb flange
Height (rear): 6.14" from rear lifter valley cover to carb flange
Port size: 2.454" height x 1.09" width

Note: Verify compatibility with your specific LS engine and carburetor setup before ordering. Installation requires proper gasket sealing and carburetor tuning for optimal performance.