GM LS1 LS2 LS6 6-71 8-71 CAST ALUMINUM CNC MACHINED BLOWER INTAKE MANIFOLD
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SPEEDMASTERPART NUMBER: 746-PCE149.1043

GM LS1 LS2 LS6 6-71 8-71 CAST ALUMINUM CNC MACHINED BLOWER INTAKE MANIFOLD

$97500
ShippingShips on 11/03/2026
Lowest PriceLowest Price Guarantee

    GM LS1 LS2 LS6 6-71 8-71 CAST ALUMINUM CNC MACHINED BLOWER INTAKE MANIFOLD

    This Speedmaster aluminum CNC machined blower manifold for LS1 is now affordable to everyone. Speedmaster has designed this intake to hold a 671 and 871 blower to an LS1 application. This manifold is a true performance component that will improve throttle response and performance throughout the entire powerband and stand up to the high crankcase pressures produced by forced induction. This is a brand new weapon to our arsenal! Features: Mounting flanges with O-Ring grooves for the perfect seal. Flat design for lower overall finish. O rings included.

    Emissions Note:

    This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

    CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

    If you are looking for a manifold to use with your 8-71 or 6-71 supercharger, look no further than Speedmaster. These Speedmaster supercharger manifolds are aluminum constructed and suitable for competition or street use.

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    Rev up your engine’s power delivery with the Speedmaster 6-71/8-71 Blower Supercharger Intake Manifolds and Components—a precision-crafted foundation for serious performance gains. Designed to seamlessly integrate Roots-style superchargers into your build, this system ensures proper airflow, consistent boost distribution, and optimal fueling dynamics under high-pressure conditions.

    The heart of this setup is a durable, cast-aluminum intake manifold engineered for efficient airflow. Its robust design delivers even distribution of air to each cylinder, minimizing hotspots and ensuring smooth, consistent power across the rev range. Supplementing this, a polished carburetor adapter plate facilitates clean throttle response and ensures a reliable seal for your spacer or carburetor—offering both form and function in a race-inspired package.

    Whether you're building around a traditional small-block Chevy or a modern LS platform, this manifold serves as a solid backbone for your forced induction aspirations. It's a perfect match for projects targeting strong midrange torque and powerful top-end performance. Compatible with multiple Roots-style blower options, this assembly helps dial in a clean, efficient setup—particularly for those who value the refinement of an integrated ls blower manifold or the practicality of an sbc supercharger intake layout. For anyone seeking a well-engineered blower intake solution that marries craftsmanship with performance, this manifold earns your consideration.

    Upgrade your build with Speedmaster’s blower-ready components, and gain peace of mind knowing that every horsepower is delivered with precision and durability.

Part TypeIntake Manifold
Product LineSpeedmaster 6-71/8-71 Blower Supercharger Intake Manifolds and Components
BrandSPEEDMASTER
Package Height7.09
Package Width13.39
Package Length22.05
Weight33.48 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Engine Make/SizeGM LS
Vendor Part NumberPCE149.1043
Package Qty1
Package TypeEA

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