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Holley High-Mount Base Accessory Drive Kits 20-300 Systems, High-Mount, Serpentine, Water Pump, Cast Aluminum, Natural Finish, Pulleys, Brackets, Timing Cover, Ford, 7.3L Godzilla, Kit

SKU: HLY20-300

Accessory Drive Systems

Holley High-Mount Base Accessory Drive Kits 20-300 Systems, High-Mount, Serpentine, Water Pump, Cast Aluminum, Natural Finish, Pulleys, Brackets, Timing Cover, Ford, 7.3L Godzilla, Kit

SKU: HLY20-300

Accessory Drive Systems
A$2,402.35
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.

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Description


Data: v2 - Desc: v4.2 - Upd: 2026-11-08 02:17:32

Data: v4.2 - Upd: 2026-11-08 06:31:01

Features

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Holley, Hilborn, Holley Efi, Retrobright, Terminator X
StreetFX SKU hly20-300
SFX Item ID 4784549
Accounting SKU hly-20-300
Manufacturer SKU 20-300
Manufacturer UPC 090127614259
Alternative References 20-300, HLY-20-300, HOL20-300

Accessory Drive Systems, High-Mount, Serpentine, Water Pump, Cast Aluminum, Natural Finish, Pulleys, Brackets, Timing Cover, Ford, 7.3L Godzilla, Kit

Holley's high-mount base accessory drive kits have everything pulled up and in tighter than other options. The patent-pending accessory drive incorporates the timing cover, water pump, and alternator and can also be configured with A/C and/or P/S if desired. The systems are designed to work with the factory crank pulley, as well as aftermarket damper and pulleys. Accessory drive components in the system can be configured in several different ways. For example, there are alternator options offered for different performance and electrical demands. Also, deleting the A/C and/or P/S are options. These "base kits" supply all but the components with options. If you purchase a "Holley complete kit," all these options are already chosen for the most common, cost-effective combination.

Features and benefits:
• Fits Ford 7.3-liter Godzilla engine—ideal for engine swaps
• Provides additional accessory clearance for swap applications that work with the factory rear sump oil pan
• Allows for A/C and/or P/S delete and choice of alternator
• Includes new front main seal and installation tool
• Works with the original factory crank pulley, as well as aftermarket damper/pulleys
• Alternator options do not require the original ECU control to function
• P/S pump with the optional external reservoir is ideal for hydro-boost applications
• Choose from natural "as-cast" or black finish on the timing cover

Product Attributes
BrandHolley
Manufacturer's Part Number20-300
Part TypeAccessory Drive Systems
Product LineHolley High-Mount Base Accessory Drive Kits
UPC090127614259
Pulley StyleSerpentine
Crankshaft Pulley IncludedNo
Water Pump MaterialCast aluminum
Water Pump ColorNatural
Water Pump Pulley IncludedYes
Water Pump Pulley MaterialSteel
Water Pump Pulley ColorBlack
Water Pump Pulley GroovesNon-ribbed
Power Steering Pump Reservoir IncludedNo
Power Steering Pulley IncludedNo
Power Steering Brackets IncludedNo
Alternator Pulley IncludedNo
Alternator Fan IncludedNo
Alternator Brackets IncludedYes
Alternator Bracket MaterialAluminum
Alternator Bracket ColorNatural
Air Conditioning Pulley IncludedNo
Air Conditioning Bracket IncludedNo
Idler IncludedYes
Idler Pulley ColorBlack
Idler Brackets IncludedNo
Tensioner IncludedNo
Tensioner Cover IncludedNo
Hardware IncludedYes
Belt IncludedNo
QuantitySold as a kit.
NotesTiming cover included.

Compatibility

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