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Speedmaster Downdraft EFI Stack Intake System Kit for Small Block Chevy

746-1-148-003K


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Downdraft EFI Stack Intake System Kit for Small Block Chevy
$4,505.60
2 left in stock
Downdraft EFI Stack Intake System Kit
  • Small Block Chevy
    Includes:
  • Downdraft EFI Stack Intake Manifold System
  • EZ-EFI 2.0 Fuel Injection Multi-Port Retro-Fit Kit
  • High-Impedance Fuel Injector
  • Velocity Stack Dome Air Filter Screens
  • Free Shipping - Ships
    QTY

    1-148-003K - Speedmaster Downdraft EFI Stack Intake Manifold Systems is rated 1.0 out of 5 by 2.
    Rated 1 out of 5 by from Injectors are the wrong length The o-rings passed the wall thickness of throttle body. Causing air to weak around the injectors. And the throttle blades are rubbing the o-rings. Looks good, but does not proform
    Date published: 2021-01-23
    • y_2024, m_7, d_16, h_9
    • bvseo_bulk, prod_bvrr, vn_bulk_3.0.42
    • cp_1, bvpage1
    • co_hasreviews, tv_1, tr_1
    • loc_en_US, sid_10001_10001_7942770, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs

    how much fuel pressure does this system require and which pumps are recommended?

    Asked by: burb
    The Speedmaster 746-1-148-003K intake requires an existing EFI system.
    Answered by: jshook
    Date published: 2023-11-29

    Will this fit a 69 pontiac 400?

    Asked by: Brock brazie
    The Speedmaster 746-1-148-003K EFI does not fit a Pontiac engine.
    Answered by: jshook
    Date published: 2023-04-28

    Will this bolt up to a 383 and did you guys fix the injector issue 

    Asked by: Bubbles
    The Speedmaster 746-1-148-003K intake kit will bolt to a small block Chevy using '86 and older cylinder heads.
    Answered by: jshook
    Date published: 2023-03-03

    Will this work on a 350 tune-port

    Asked by: Coupe32
    The Speedmaster 746-1-148-003K stack kit will bolt to a 350 TPI.
    Answered by: jshook
    Date published: 2023-02-01

    Will this downdraft system work as a complete replacement for a carbureted LT-1 small block Chevy? 

    Asked by: joy695313
    Speedmaster 746-1-148-003K is designed to be used with an early sbc not the lt1
    Answered by: langus
    Date published: 2023-07-02
    • y_2024, m_7, d_15, h_4CST
    • bvseo_bulk, prod_bvqa, vn_bulk_3.0.42
    • cp_1, bvpage1
    • co_hasquestionsanswers, tq_5
    • loc_en_US, sid_10001_10001_7942770, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
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