Upgrade the foundation of your classic Ford diesel with the Gator Fasteners HD220 Heavy Duty Main Stud Kit (MSK6973IDI), engineered exclusively for 1983-1994 Ford 6.9L and 7.3L IDI Diesel engines. Manufactured from Gator's proprietary HD220 alloy, these main studs deliver industry-leading tensile strength of over 220,000 PSI far surpassing OEM and aftermarket alternatives - to provide superior clamping force and bottom-end security for both stock and performance builds.

This is currently the only main stud kit designed specifically for the Ford IDI platform. Each kit is compatible with or without a girdle kit, making it ideal for custom engine builds. If you are installing the kit without a girdle, the oil pickup support bracket must be drilled to accommodate the larger main stud diameter.

The corrosion-resistant black oxide finish ensures long-lasting protection, even in harsh diesel environments.

Vehicle Compatibility: Fits 1983-1994 Ford F-Series trucks and E-Series vans equipped with 6.9L or 7.3L IDI V8 diesel engines.

Features:

• HD220 High-Strength Material- Proprietary alloy delivers 220,000plus PSI tensile strength for unmatched bottom-end durability
• Unique Application- The only main stud kit specifically engineered for 1983 - 1994 Ford 6.9L and 7.3L IDI Diesel engines
• Girdle Compatible- Designed to work with or without a girdle kit for maximum versatility
• Installation Note- If installing without a girdle, the oil pickup support bracket must be drilled to fit the larger main stud diameter
• Corrosion Resistant- Black oxide finish protects against rust and harsh environments
• Gator Fasteners Quality- Backed by Gator Fasteners’ commitment to strength and reliability - Nothing Bites Like Gator