Holley 97-426 Rear Block Plug Kit for Ford 7.3L Godzilla Engine

The Holley 97-426 Rear Block Plug Kit is specifically engineered for the Ford 7.3L Godzilla engine, providing a clean, professional solution for blocking off rear cooling ports in engine swaps and racing applications where a heater system is not required.

Key Features:

• Machined steel billet plug with clear zinc-plated finish for corrosion resistance
• Includes O-ring seal, mounting bracket, and retaining bolt for complete installation
• Designed to handle high pressure and high temperature conditions typical of engine cooling systems
• Works in conjunction with Holley 97-425 front/heater block-off kit to eliminate all cooling ports
• Easy installation without the need to tap holes or fabricate custom plugs and caps
• Provides a clean, professional appearance compared to traditional hoses, clamps, and makeshift plugs

The 7.3L Godzilla engine presents unique challenges when eliminating the heater system due to difficult-to-access inlet and outlet passages. This purpose-built kit solves that problem with precision-engineered components that deliver a reliable, leak-free seal while maintaining a factory-quality appearance. Ideal for racing applications, engine swaps, and custom builds where heater functionality is unnecessary.