Product Description
Genuine Sealed Power 4420M 001 Main Bearing Set (NOS)
This genuine Sealed Power 4420M Main Bearing Set is a premium New Old Stock (NOS) engine component, specifically engineered for the legendary Ford FE and FT Big Block V8 engine families. Manufactured in the USA, this .001" undersize set features the 3.930" flange diameter, which is the correct specification for late-production and heavy-duty FE series blocks produced from 1966 onward. Designed for a wide range of displacements including the 330, 360, 361, 390, 391, 406, 410, 427, and 428, these bearings provide the high-load durability and precise oil clearances required for a professional-grade engine restoration or rebuild of Ford F-Series trucks, Mustangs, Thunderbirds, and Mercury full-size models.
Key Features:
- Brand: Sealed Power / Federal Mogul
- Part Number: 4420M (Suffix 001)
- Interchange: MS863P, 4420M
- Position: Crankshaft Main Bearings
- Size: .001" (Undersize)
- Engine Fitment: Ford FE & FT V8 (Late / Heavy Duty 3.930" Flange)
- Origin: Made in the USA
- Condition: NOS (New Old Stock)
Fitment:
| Make | Model | Year | Engine | Notes |
|---|---|---|---|---|
| Ford / Mercury | Mustang / Cougar / Thunderbird / Galaxie / Monterey | 1966-1971 | 390 / 410 / 427 / 428 | Late FE; 3.930" Flange O.D. |
| Ford Truck | F-100 / F-250 / F-350 / F-500 | 1966-1976 | 330 / 359 / 360 / 361 / 389 / 390 / 391 | FE and FT Heavy Duty Series |
Fits Years:
1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978
Note on Photos: The images provided are of the actual item you will receive. Please inspect the photos carefully to confirm the condition and specific features of the part. Because these are vintage components, minor surface variations or packaging wear may be present; however, the part pictured is the exact unit being sold.
A Note on Fitment Accuracy: We manually research our fitment data using vintage manufacturer catalogs to provide you with the most accurate information possible. However, because we are human and these decades-old resources can occasionally contain errors, we cannot guarantee 100% accuracy. We strongly encourage you to perform your own due diligence and verify this part number for your specific application before purchasing. Please note that this part may also fit other vehicles or years not explicitly listed in our research.
Unbeatable Prices & Expectations
While many of our vintage parts were manufactured decades ago, they remain unused and high-quality. Some original boxes may show signs of shelf-wear, such as dust, tape, or surface distress from years of storage. Rest assured, the components inside have been inspected to ensure they are complete and ready to help you finish your project without breaking the bank.
