
BLOCK PLUG KIT-GDZ
Fits 2020 & Up Ford 7.3L Gasoline V8 Godzilla Engine
Overview
Some engine swaps and racing applications do not need the heater, but it is tough to block off with the 7.3-liter Godzilla engine. The factory rear hose port is retained with a bolt (and the port is not tapped). This kit includes a zinc-plated steel plug with an o-ring seal retained by a bracket and bolt.
Features:
- Elimination of the heater is difficult on the 7.3-liter Godzilla engine since the hose inlet and outlet passages are tough to plug & look cobbled up using traditional hoses, clamps, and plugs
- Machined steel billet plug with o-ring seal, mounting bracket, and retaining bolt – blocks off the rear port
- Works with 97-425 (front/heater block-off kit) to block all cooling ports
- The plug is designed to handle high pressure & high temperature – typical conditions of the cooling system
- Easy Installation without the need to tap holes or fabricate special plugs and caps
- Steel plug features a clear zinc-plated finish
- Ideal for use in engine swaps or racing applications that do not require a heater
About Holley

Specs
Brand | Holley |
---|---|
Category | Belts and Cooling |
Color | Silver |
Emission Code | 5 |
Engine | Ford 7.3L Godzilla |
Finish | Aluminum |
Material | Aluminum |
Mounting Hardware Included | Yes |
Part Type | Engine Water Pump Block-Off Plate |
Product Type | Heater Block-Off Kit |
Sub Category | Water Pump and Related Components |
UPC | 090127788387 |
Part Number | 97-426 |
Emissions
5
This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
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