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

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

Charts

Installation Instructions (PDF)

Guides & Documents

Intake Manifolds Installation Instructions (425300129BK)

CARB Warning

For race/ off road use only

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

CARB warning

Holley 300-129BK Specifications

KEY SPECS
MFG. Part #	300-129BK
Brand	Holley
Injection Style	Multi-port
Intake Manifold Type	Dual Plane
Carburetor Flange Type	4-Barrel Square Bore
RPM Range	1,500-6,500
Material Type	Aluminum

GENERAL
Fuel System Type	EFI
Carburetor Quantity	One
Finish	Anodized
Color	Black
EGR	No
Intake Section Included	Complete
Overall Height	6.14"
Bolt Hole Pattern	5.160" x 5.625"
Sold in Quantity	Each
GTIN Code	090127715888

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Fitment

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2007-2012 Cadillac Escalade ESV

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2010-2014 Chevy Camaro

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2008-2009 Hummer H2

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