Holley Ls3/L92 Single Plane Carbureted Intake Manifold

Single-plane carbureted intake manifold designed for all GM LS Gen III or IV engines equipped with LS3/L92 style rectangular port cylinder heads.

Key Features:

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• 2500-7000 RPM power band
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• 4150 Square bore flange (accommodates up to 1.75" diameter throttle bores)
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• Optimized runner layout and constant cross-sectional area for a broad torque curve, ensuring optimal vehicle performance from 2500-7000 RPM
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• Minimum carb flange height allows for easy fitting in vehicles with minimal hood modifications
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• Cast aluminum construction, making it an excellent choice for centrifugal blower, turbocharged, or NOS power adder applications
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• Efficient casting design for a lightweight build, consistent wall thicknesses, and improved casting quality
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• Weighs 11.5 lbs.
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• Height (front) - 5.417" to the lifter valley cover flange at the engine block front flange
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• Port size - 2.50" height x 1.15" wide
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• Includes Viton® O-ring intake to cylinder head gaskets - Viton® is a registered trademark of DuPont Performance Elastomers
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