Holley Godzilla High-Mount Accessory Drive - F100 Swap - Complete - Natural

Make the Godzilla fit. Properly. Installing a 7.3L Godzilla into a 65-79 F-series is the natural desire of a lot of Ford truck enthusiasts - and the OE oil pump location and accessory drive are exactly what stand in the way. Holley shrank the envelope. A crank concentric driven gerotor pump using all Melling internal components moves the oiling system behind the timing cover; gaining crucial crossmember and ground clearance. The OE style cast pan holds 6.5 quarts with filter and carries a 1/2-inch NPT turbo drain-back port. This high-mount version pulls every accessory up and in tighter than other options; and relocates the heater hose connections out of sight. Cleaner engine bay. Same reliability.

  • Clearance where the swap fails - the oil pump moves behind the timing cover; crossmember and ground clearance follow.
  • Tighter than the alternatives - accessories pulled up and in; heater hoses routed out of sight.
  • 6.5 quarts with filter - real capacity plus a 1/2-inch NPT turbo drain-back port.
  • Spring changes without dropping the pan - the pressure spring port stays accessible.
  • No ECU needed for charging - alternator options run without the original ECU control.
  • Hydro-boost ready - optional external reservoir on the P/S pump.

Install Level: Advanced

Complete configuration; natural finish.
An always accessible pressure spring port allows oil pressure spring changes without removing the pan.
Alternator options do not require the original ECU control to function.
New oil pan hardware; dipstick; front main seal and installation tool included.

Holley
SKU: 20-345 ISBN:
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Holley Godzilla High-Mount Accessory Drive - F100 Swap - Complete - Natural
$2,428.95
Overview
Specifications
Tech Resources
Compatibility
Installing a 7.3L Godzilla engine into a 65-79 F-series truck is the natural desire of many Ford truck enthusiasts. The OE GDZ oil pump location and the OE accessory drive present issues with GDZ engine swaps that Holley has sought to overcome. The Holley high-mount accessory drive, oiling system, and swap oil pan for the Ford 7.3-liter Godzilla engine effectively reduces the envelope this engine to make the GDZ engine a perfect fit. The integrated timing cover, oil pump, oil pan, water pump, alternator, and option for A/C and/or P/S, make a complete engineered swap solution for the classic F-series truck. The Holley system replaces Ford's sump-mounted oil pump with a high-capacity gerotor pump positioned behind the timing cover, gaining crucial crossmember and ground clearance. To ensure reliability, we have incorporated a proven pump design utilizing Melling sourced components that mimics the factory pressure level. Should your application require additional oil pressure, we offer a high-pressure spring kit (part# 302-102) for easy installation. Unlike most pumps that require removing the oil pan to change the pressure spring, we have introduced a first-of-its-kind external access port, allowing hassle-free spring switching. The F100 cast aluminum swap oil pan features a performance-minded windage tray and hinged trap-door baffle, guaranteeing proper oil pickup during high G maneuvers. Our accessory drive system offers flexible configuration options to meet various needs. Different alternator choices are available to cater to diverse performance and electrical requirements. If you prefer a customized modular setup, you can opt to exclude the A/C and/or P/S components. Holley's Godzilla High-Mount Accessory Drive is the ultimate solution for engine swaps, offering unparalleled functionality, adaptability, and ease of installation.

Features:

  • Complete kits include everything needed for the most common, cost-effective combination – including all adapters, accessories, and belt
  • Crank concentric driven Gerotor oil pump utilizes all Melling internal components
  • OE style cast oil pan design with 6.5 quarts oil capacity (with filter) and 1/2-inch NPT turbo drain-back port
  • Integrated oil priming ports and procedure and oil cooler plumbing
  • Always accessible" pressure spring port allows for quick oil spring pressure changes
  • Advanced windage tray and baffle system keep oil in the sump
  • New oil pan hardware and dipstick included
  • Fits Ford 7.3-liter Godzilla engine – ideal for engine swaps
  • Includes new front main seal and installation tool
  • Works with the original factory crank pulley, as well as aftermarket damper/pulleys
  • This high-mount accessory drive has all accessories pulled up and in tighter than other options
  • Relocates heater hose connections out of sight for a noticeable visual improvement over the OE design
  • 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
Holley part number 20-345
Finish: natural
For Ford 7.3L Godzilla engine swaps into 1965-1979 F-series trucks
Complete kit - all adapters; accessories and belt included
Crank concentric driven gerotor oil pump - all Melling internal components
OE style cast oil pan - 6.5 quart capacity with filter
1/2-inch NPT turbo drain-back port
Integrated oil priming ports and oil cooler plumbing
Always accessible pressure spring port - no pan removal for spring changes
Advanced windage tray and baffle system
New oil pan hardware and dipstick included
New front main seal and installation tool included
Works with factory crank pulley or aftermarket damper/pulleys
Alternator options do not require original ECU control
P/S pump with optional external reservoir - ideal for hydro-boost
High-pressure spring kit available separately: part 302-102
Ford 7.3L Godzilla engine.
1965-1979 Ford F-series trucks.
Factory crank pulley or aftermarket damper/pulleys.
Optional A/C and/or power steering configurations.

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