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  • 102264-3 1 "Throttle shaft, progressive primary 4150.
    1540 4 Idle mixture screw.
    16420 2 "Float, brass center hung.
    1741 2 "Float pivot pin, center hung.
    18135 2 "Needle seat, .110 Viton.
    21572-31 2 Pump discharge nozzle .031.
    23258 2 Pump discharge needle.
    23468 2 Pump nozzle rubber check valve.
    25591Q-65 2 Power valve 6.5 gas/alky w/ gasket.
    271521 4 Idle Mixture seal (rubber).
    291094 1 Secondary return spring pin for 4150.
    3415063 2 Fuel Bowl Lightweight Pri-Sec.
    342183U 2 Pump diaphragm cover, 30cc.Lightweight.
    35342 2 "Pump diaphragm, 30cc.
    37133 2 Accelerator pump arm pivot.
    38110 1 "Spring, 4150 primary idle adjustment.
    381216 2 "Spring, float pivot.
    381762 1 "Spring, 4150 secondary throttle return.
    38569 2 "Spring, 30cc pump diaphragm.
    39160 2 Needle & seat lock nut.
    41330 1 Accelerator pump cam ( pink).
    43601B-BLP 1 BLP Adjustable secondary link kit/4150.
    45296BX4-155 4 BX4 std style stepped booster prepped.
    46395 1 "Throttle link flat washer, 4150.
    4744 2 Pump arm retainer clip.
    4794 8 "Bowl Screw Gaskets, nylon.
    48183 1 Throttle linkage cotter pin.
    4858-1.400 2 "Vent tube, 1.400 long.
    51016 4 Screw float bracket.
    51241-3R-FE 2 2-circuit gas billet gas M/B.
    51244-BX 2 New Style Pump nozzle screw, hollow.
    51271 1 "Screw, primary idle adjust for 4150.
    5159 2 "Rivet, vent whistle.
    51601 1 "Screw, secondary idle adjust for 4150.
    5200-750B 1 Billet Base Plate (Bare) Black.
    5251BX4-750 1 BoMax Billet Main Section 4BBL 750.
    5313 2 "Plug, accelerator pump passage on billet.
    5369 8 "Screw, 30cc accelerator pump cover.
    5400R 2 Gasket, BLP non stick bowl.RED.
    5401R 2 Gasket, BLP non stick metering block.
    5500-00 12 Air Corrector Blank 10/32.
    5552 8 "Screw, fuel bowl OEM.
    5567 8 "Screw, 4150 main body to base plate.
    5584 1 "Screw,Secondary cam bracket.
    56352 8 Screw, 3/16 long SS throttle plate torx.
    5682 1 "Screw, pump cam.
    5765 2 "Screw, needle & seat lock screw.
    59171 2 Vent Baffle.
    5979 2 Float bracket for center hung floats.
    63741 2 Pump arm assembly 30 cc.
    63822 1 Secondary cam bracket 4150.
    7107 8 .250 Metering block plug.
    7225 2 "Screw, float bowl sight.
    81031 1 "Gasket, 650-750 base to main body.
    81185 2 "Gasket, Holley fuel inlet 7/8.
    81597 2 "Gasket, power valve.
    8540 2 Gasket fuel bowl sight screw.
    8776 2 "Gasket, needle & seat adjusting nut.
    8777 2 Gasket needle & seat lock screw.
    8844 4 Gasket pump nozzle screw.
    9354 4 SS 650-830 T plate no hole.

    BLP Racing Products, LLC. Is not responsible for errors with photography, typographical content or pricing and are subject to correction and/or change without notice.




    This product was added to our catalog on Friday 09 February, 2018.

    BX4 Billet Builder kit 750cfm

    $558.95

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    • Model: 49241BX4
    • Manufactured by: BLP

    BX4 Billet Builder Kits are an excellent option for the professional carburetor builder, to assemble and calibrate a carburetor to their respective needs, without the excess work of scraping gaskets and reworking parts.
    These kits are completely unassembled and need to have boosters installed and all components assembled.
    Jets and Air bleeds not included, are available upon request from builder.
    Billet made in USA components are easy to assemble and are accurate every time.
    Custom applications are available please call your customer representative for details on customization.
    Custom engraving available for the metering blocks and main section applicable fees apply.
    Components included:
    102203 1 "Throttle shaft, 4150 progressive