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Holley 300-900 Intake Manifold Ford 7.3L EFI, Natural

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#426300900

Holley 300-900 Intake Manifold Ford 7.3L EFI, Natural

Throttle Body Options: 1) 1986-1993 5.0L Mustang style drive-by-cable throttle bodies, 2) 2020-2023 7.3L drive-by-wire throttle body, and 3) 2020-2023 GT500 drive-by-wire throttle body (requires part #300-903)
Compatible Engine Components: 1) Factory accessories as well as Holley accessory drives (except for #20-380 and #97-409) and 2) Factory fuel rails and Holley #534-265 / #534-266 billet rails

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Product Summary

EFI Fuel System Type, 2000-6500 RPM Range, Aluminum

Throttle Body Options: 1) 1986-1993 5.0L Mustang style drive-by-cable throttle bodies, 2) 2020-2023 7.3L drive-by-wire throttle body, and 3) 2020-2023 GT500 drive-by-wire throttle body (requires part #300-903)
Compatible Engine Components: 1) Factory accessories as well as Holley accessory drives (except for #20-380 and #97-409) and 2) Factory fuel rails and Holley #534-265 / #534-266 billet rails
Included items: Heater delete kit (# 97-425), hardware/o-ring kit (# 300-905), and NPT plugs for unused vacuum ports at rear of manifold (1x 1/8NPT, 1/4 NPT, and 3/8 NPT)
Optional items: Heater hardline line adapter (# 300-901), GT500 throttle body adapter (# 300-903), and O-ring replacement kit (# 300-906)
Patent-pending design optimizes hood clearance for engine swap applications with gains ranging from 2 to 3.5-inches

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Key Specs

MFG. Part #	300-900
Brand	Holley
RPM Range	2000-6500
Material Type	Aluminum

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Holley 300-900 Details

Holley's low-profile intake manifold for Ford's 7.3L "Godzilla" engine, when paired with a 20-340/20-340BK oil pan and accessory drive kit, allows for easy installation into vintage vehicles, kit cars, and other space-restricted applications while retaining the factory hood. The design focus for this manifold was equal cylinder distribution and great street manners. This low-profile intake manifold offers a much cleaner alternative to the original plastic intake, provides anywhere from 2 to 3.5-inches of additional clearance, corrects the OE throttle body angle by 55 degrees, and increases the opening to 92mm. With three throttle body options, sturdy cast aluminum construction, a removable lower panel, and long runners to maintain the 7.3-liter's already substantial torque offering, this is a must-have for any "Godzilla" project.

• Throttle Body Options: 1) 1986-1993 5.0L Mustang style drive-by-cable throttle bodies, 2) 2020-2023 7.3L drive-by-wire throttle body, and 3) 2020-2023 GT500 drive-by-wire throttle body (requires part #300-903)

• Compatible Engine Components: 1) Factory accessories as well as Holley accessory drives (except for #20-380 and #97-409) and 2) Factory fuel rails and Holley #534-265 / #534-266 billet rails

Included items: Heater delete kit (# 97-425), hardware/o-ring kit (# 300-905), and NPT plugs for unused vacuum ports at rear of manifold (1x 1/8NPT, 1/4 NPT, and 3/8 NPT)

Optional items: Heater hardline line adapter (# 300-901), GT500 throttle body adapter (# 300-903), and O-ring replacement kit (# 300-906)

Patent-pending design optimizes hood clearance for engine swap applications with gains ranging from 2 to 3.5-inches

Robust cast aluminum construction that will withstand high-boost turbocharger and supercharger applications

Three throttle body options to choose from: OE 7.3L DBW, Fox Body cable driven style, 2020-2023 GT500 (requires part # 300-903)

Perfect complement to Holley’s Godzilla Accessory Drive and Oiling System (20-320 / 20-320BK / 20-340 / 20-340BK) for fitment into tight engine bays

Removable lower intake panel that can be removed for additional porting, nitrous, etc

Runner design optimizes horsepower and torque in upper RPM range, especially when engine is allowed to breathe with better components (throttle body, cam, etc.)

Includes throttle body gasket and all necessary o-rings and adapters to mount to the engine

Compatible with OE or Holley accesory drives and OE or Holley Fuel Rails

Corrects OE throttle body flange angle by 55 degrees for significantly improved clearance and intake pipe routing

Includes 3/8 NPT, 1/4 NPT and 1/8 NPT vacuum ports at rear of manifold

Heater applications - Use 300-901 heater line adapter. This adapter will work with either the original Ford or Holley intakes and is required for A/C applications and the Holley low intake.

Guides & Documents

Intake Manifolds Installation Instructions (426300900)

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.

WARNING:

Cancer and Reproductive Harm – www.P65Warnings.ca.gov

CARB warning

Holley 300-900 Specifications

KEY SPECS
MFG. Part #	300-900
Brand	Holley
RPM Range	2000-6500
Material Type	Aluminum

GENERAL
Fuel System Type	EFI
Finish	Natural
EGR	No
Throttle Body Bore Size	92mm
Plenum Finish	Natural
Throttle Body Included	No
Injectors Included	No
Fuel Rails Included	No
Gaskets Included	No
Runners Removable	No
Sold in Quantity	Each
GTIN Code	00090127136331
Intake Manifold Height	3.625"

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