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  • Holley® 4150 Annular Booster Insert

    BLP also offers an in-house machined cast booster center for more accurate hole size and feed location.




    Product Image Item Name- Price
    Holley® 4150 Annular Insert, OEM .600 Center, 8 Holes

    Holley® 4150 Annular Insert, OEM .600 Center, 8 Holes

    HOLLEY® 4150 ANNULAR BOOSTER INSERT OEM with .600 center, 8 holes.
    $3.85

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    Holley® 4150 Annular Insert, OEM .600 Center, No Holes

    Holley® 4150 Annular Insert, OEM .600 Center, No Holes

    HOLLEY® 4150 ANNULAR BOOSTER INSERT OEM with .600 center, no holes.
    $4.50

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    Holley® 4150 Annular Insert, BLP .600 center, 8 Holes

    Holley® 4150 Annular Insert, BLP .600 center, 8 Holes

    HOLLEY® 4150 ANNULAR BOOSTER INSERT BLP with .600 center, 8 holes.
    $12.00

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    Holley® 4150 Annular Insert , BLP .600 Center, 12-Holes

    Holley® 4150 Annular Insert , BLP .600 Center, 12-Holes

    HOLLEY® 4150 ANNULAR BOOSTER INSERT BLP with .600 center, 12 holes.
    $12.00

    Add:

    Holley® 4150 Annular Insert, BLP .600 Center, 16-Holes

    Holley® 4150 Annular Insert, BLP .600 Center, 16-Holes

    HOLLEY® 4150 ANNULAR BOOSTER INSERT BLP with .600 center, 16 holes.
    $12.50

    Add:

    Holley® 4150 Annular Insert, BLP .600 Center, 18-Holes

    Holley® 4150 Annular Insert, BLP .600 Center, 18-Holes

    HOLLEY® 4150 ANNULAR BOOSTER INSERT BLP with .600 center, 18 holes.
    $12.50

    Add: