Product Summary

Chrome, Aluminum

  • The opening is 92mm but any 4-bolt pattern LS throttle body will physically fit. We recommend the LS2/LS3/LS7 style but the L33, L76, and L92 should also fit.
  • *Requires adapter to connect to 4150/4160 square bore flange style manifold - Holley EFI part # 17-93 is recommended.
  • All part numbers in this series:
  • 120-500 - 16-Inch DBW Air Cleaner - Chrome
  • 120-501 - 16-Inch DBW Air Cleaner - Black
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Key Specs

MFG. Part #120-520
BrandHolley
FinishChrome
Material TypeAluminum
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Need To Know

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Holley 120-520 Details


RetroFilter air cleaners cleverly hide an LS drive-by-wire throttle body inside to maintain a low height and classic looks. Utilizing a hidden opening in the base to hide unsightly wiring from the throttle body, this trick air cleaner allows you to experience all the benefits of modern technology and keep the vintage look you want. Pair with any Holley intake manifold with a 4150/4160 square bore flange for maximum aesthetics and performance.
  • The opening is 92mm but any 4-bolt pattern LS throttle body will physically fit. We recommend the LS2/LS3/LS7 style but the L33, L76, and L92 should also fit.
  • *Requires adapter to connect to 4150/4160 square bore flange style manifold - Holley EFI part # 17-93 is recommended.
  • All part numbers in this series:
  • 120-500 - 16-Inch DBW Air Cleaner - Chrome
  • 120-501 - 16-Inch DBW Air Cleaner - Black
  • 120-520 - 14-Inch Dual Snorkel DBW Air Cleaner - Chrome
  • 120-521 - 14-Inch Dual Snorkel DBW Air Cleaner - Black
  • Allows full EFI functionality stealthily hidden within a traditional looking air cleaner package
  • Each kit includes a 3-inch tall, pre-oiled, washable and reusable premium cotton gauze filter element
  • Available in Black and Chrome finishes
  • Adapts to LS style drive-by-wire throttle bodies found on the LS2, LS3, LS7, etc.
  • Can be installed on any vehicle running a top mounted 4150/4BBL EFI capable intake manifold with LS3 DBW wiring components
  • Stamped aluminum lid and base for optimal durability and light weight

    While some Gen V LT DBW throttle bodies may share the same bolt pattern, they will not fit properly.

  • CARB Warning

    For use on pre-1966 vehicles only

    Emissions warning: this part only legal for sale or use in California if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. ++any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering there are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

    Holley 120-520 Specifications

    KEY SPECS
    MFG. Part #120-520
    BrandHolley
    FinishChrome
    Material TypeAluminum
    GENERAL
    Sold in QuantityEach
    GTIN Code00090127109793
    Filter Height3"
    Filter ColorRed
    Filter MaterialCotton Gauze
    Overall Diameter14"

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