Fits all GM LS Gen III or IV engines equipped with LS3/LS92 style rectangular port cylinder heads. Includes mounting bolts & washers as well as pipe plugs for Manifold vacuum and MAP sensor ports.
NOTE: These Dual-Plane Intake Manifolds are NOT legal for sale or use on engines with pollution controlled equipment.
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
Specs
Brand
Holley
Construction
Cast
Emission Code
3
Engine
GM LS3/L92
Finish
Black
Front Height
5.07 inch
Fuel System Type
Carb
Manifold Type
Dual Plane
Product Type
Manifold
Rear Height
6.14 inch
RPM Power Band
1500-6500
Part Number
300-129BK
Emissions
This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing 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
Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.
Fits all GM LS Gen III or IV engines equipped with LS3/LS92 style rectangular port cylinder heads. Includes mounting bolts & washers as well as pipe plugs for Manifold vacuum and MAP sensor ports.
NOTE: These Dual-Plane Intake Manifolds are NOT legal for sale or use on engines with pollution controlled equipment.
*Free Shipping & Handling only offered to the contiguous US on orders over $100.
Some parts are not legal for use in California or other states with similar regulations.