Holley 300-129 Dual Plane Carbureted Intake Rectangular Port Cylinder-GM LS3/L92

All GM LS Gen III or IV engines equipped with LS3/LS92 style rectangular port cylinder heads

Got an LS engine to get running? Nothing is easier than bolting on a carburetor. Holley's dual plane carbureted intake for GM's LS engines will help you get on the streets quick!

Its dual plane design makes it perfect for low end torque, yet it still pulls all the way to 6,500 RPM! Our O-ring cylinder head mounting flange gaskets provide an OEM style seal and make installation a snap. Bolt one on today!

Features:

• 1500-6500 RPM power band
  4150 square bore carb mounting flange
  Optimized runner layout and constant cross sectional area provide a broad torque curve
  Minimum carb flange height means it fits in vehicles with minimal or no hood modifications
  Great for carbureted or throttle body EFI street applications
  Cast aluminum construction and efficient casting design for light weight, consistent wall thicknesses and improved casting quality
  Weighs 14.56 lbs.
  Height (front) - 5.07" from front lifter valley cover to carb mounting flange
  Height (rear) - 6.14" from rear lifter valley cover to carb mounting flange
  Port size - 2.454" height x 1.09" wide
  Mounting flange gasket type - O-ring
  Includes Viton® O-rings - Viton® is a registered trademark of DuPont Performance Elastomers

Specifications:

• Brand: Holley
  Color: Natural
  Construction: Cast
  Emission Code: 3
  Barrels: 4
  Engine: GM LS3/L92
  Finish: Natural
  Flange Style: 4150 Square Bore
  Front Height: 5.07 inch
  Fuel System Type: Carb
  Manifold Type: Dual Plane
  Product Type: Intake Manifold
  Rear Height: 6.14 inch
  RPM Power Band: 1500-6500 RPM
  Warranty: Limited 90 Day
  Part Number: 300-129

Emissions:

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles.
The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

1965 and older U.S. manufactured California Certified vehicles
1967 and older U.S. manufactured Federally Certified vehicles
1967 and older Foreign manufactured vehicle

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle
The following vehicles are considered Emissions Controlled Vehicles:

1966 and newer U.S. manufactured California Certified vehicles
1968 and newer U.S. manufactured Federally Certified vehicles
1968 and newer Foreign manufactured vehicle