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Speedmaster 1-148-002

Speedmaster Complete Downdraft EFI Stack Intake Manifold System - Chevy LS3 Fuel Injected

746-1-148-002

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Speedmaster Complete Downdraft EFI Stack Intake Manifold System - Chevy LS3 Fuel Injected $2,266.00
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Complete Downdraft EFI Stack Intake Manifold System
  • Chevy LS3 Fuel Injected
  • Non-EGR
  • Idle-7000 RPM
  • Includes Intake Trumpets and Fuel Rails
  • Unassembled
  • Aluminum Casting
  • Polished Finish
  • 8-Piece Set
  • Items You May Also Consider

    Speedmaster 1-148-002 Details

    Chevy LS3

    The Speedmaster Individual throttle body EFI system have all the flash of classic Weber induction but provide higher state of tune and engine performance versatility of EFI. Delivering crisp EFI performance with systems capable of supporting high hp. Fuel and air is delivered through precision cast aluminum 50mm IDA style throttle bodies that allow for superior idle characteristics and astounding throttle response while improving emissions and economy through tight air/fuel ratio control.

    Speedmaster linkage set incorporates the throttle stops, idle controls, lever arms and joiner/balancer all in one. It also features a single screw adjustment for calibrating front to rear throttle shafts.

    The bell crank has a fully indexable eccentric cable pulley that enables good slow speed drivability and still attain full throttle geometry.

    Speedmaster throttle bodies have the following feature:

    - CNC machined, Heat treated 601 Cast aluminum.
    - Butterflies

    Specifications:

    Manufacturer's Part Number:
    1-148-002
    Shipping Weight:
    25.57
    Package Height:
    12.2
    Package Depth:
    11.5
    Package Width:
    22.5

    EFI Performance Intakes

    Speedmaster's Downdraft EFI Stack Intake Manifold Systems are designed to provide exceptional EFI tuning and versatile engine performance. These intake systems deliver crisp EFI performance in up to 1000 hp applications. Precision cast aluminum 50mm IDA-style throttle bodies supply sufficient fuel and air to provide superior idle characteristics and throttle response. Improve your vehicle's emissions and air/fuel ratio economy with a downdraft EFI stack intake manifold system from Speedmaster!

    Will this fit on a 4.8L ls

    Asked by: Merk werb
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    Some parts are not legal for use in California or other states with similar laws / regulations

    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.

    Tools:

    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.