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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!
1500-6500 RPM power band
4150 Square bore flange
Optimized runner layout and constant cross sectional area - broad torque curve, best vehicle performance from 1500-6500 RPM
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 15.14 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 - 2.72" height x 1" wide
Mounting flange gasket type - O-ring
Includes Viton® O-rings - Viton® is a registered trademark of DuPont Performance Elastomers
All GM LS Gen III or IV engines equipped with LS1/LS2/LS6 style cathedral 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.