VEGE DFE4 Remanufactured Long Block Crate Engine — Ford 400 V8 (6.6L)
The torque monster that hauled America’s hardest-working trucks — remanufactured to factory spec. The VEGE DFE4 is a fully remanufactured Ford 400 engine — the 6.6L / 400 cubic inch V8 that powered 1970s and early-1980s F-Series trucks, Thunderbirds, LTDs, Rancheros, Cougars and Marquis models with effortless big-block torque. With cylinder heads and oil pump installed and torqued to specification, this long block is ready to receive your intake, carburetor and accessories — a true drop-in replacement for classic Ford V8 applications. Crated and shipped fast across Europe from NH Race Engine.
Why Choose the VEGE DFE4?
The Ford 400 (often called the “400M”) was Ford’s answer to the demand for maximum torque in the 1970s: a long-stroke, big-journal small-block-based V8 that pulls like a big block and fits like a small block. It earned a cult following in classic trucks, and today it’s a prized heart for restorations, square-body F-150 builds and traditional hot rods.
Finding a healthy Ford 400 engine today means sorting through half-century-old cores with unknown histories. The DFE4 eliminates the gamble. VEGE completely disassembles every core to individual components, then cleans, crack-tests, measures and machines the block and cylinder heads back to OE tolerances. Each engine is reverse-engineered — known original design defects are identified and eliminated before reassembly, not copied. Wear components are replaced new, and every long block is tested and calibrated before being vacuum-sealed, corrosion-treated and crated for dispatch.
Key Features & Benefits
- Ford 400 / 400M V8 Platform: 6.6L of long-stroke torque — the engine that defines classic Ford truck pulling power.
- True Remanufacture to Factory Spec: Complete teardown, crack testing, machining to OE tolerances and reassembly by certified technicians — a documented process, not a salvage refresh.
- Reverse-Engineered Reliability: Original design defects are eliminated during remanufacturing, so your replacement engine is built better than the one that failed.
- Long Block Ready: Cylinder heads, valvetrain and oil pump with gasket installed and torqued to specification. Transfer your intake manifold, carburetor, ignition and accessories.
- Restoration & Hot Rod Favorite: The correct engine for period-correct F-100/F-150 restorations — and a torque-rich foundation for traditional hot rods, customs and gasser builds.
- Strong Classic Parts Support: The 400M shares architecture with the 351M/400 family, with deep aftermarket availability across intakes, cams, exhaust and ignition.
- Crated for Safe EU Transport: Vacuum-sealed, corrosion-treated, steel-crate packed and dispatched with full tracking and insurance.
Vehicle Fitment — DFE4 Applications
The VEGE DFE4 Ford 400 engine long block suits classic Ford and Mercury applications running the 6.6L / 400 V8:
- Ford F-Series Trucks (1971–1982): F-100, F-150, F-250, F-350 with the 400 V8
- Ford Cars (1971–1979): Thunderbird, LTD, Ranchero, Torino, LTD II
- Mercury (1971–1979): Cougar, Marquis, Grand Marquis, Montego
- Hot Rod & Custom Builds: The 400M is a beloved big-torque foundation for traditional street rods, gassers and customs
Verify before ordering: The Ford 400 shares its engine family with the 351M, and many components look similar while differing in critical dimensions. The DFE4 covers the 6.6L / 400 configuration — confirm your engine code, casting numbers or VIN with our technical team before ordering, and we’ll verify it’s the exact match.
Technical Specifications
| Part Type: | Crate Engine — Long Block (Remanufactured) |
| Product Line: | VEGE Remanufactured Long Block Crate Engines |
| MPN: | DFE4 |
| Summit Part No.: | VRE-DFE4 |
| Actual Displacement: | 6.6L / 400 cu in |
| Configuration: | V8, OHV, 16 valves |
| Aspiration: | Naturally aspirated, carbureted (typical applications) |
| Production Era: | 1971–1982 |
| Makes: | Ford, Lincoln, Mercury |
| Cylinder Heads: | Included |
| Oil Pump: | Included, with gasket |
| Air Cleaner: | Not included |
| Spark Plugs: | Not included |
| Assembled: | Yes — sold individually |
What’s Included vs. What You Transfer
| Component | Included | Transfer from Original Engine |
|---|---|---|
| Engine block (remanufactured) | ✅ | — |
| Crankshaft, pistons, rods, bearings | ✅ | — |
| Cylinder heads & valvetrain | ✅ | — |
| Oil pump & gasket | ✅ | — |
| Intake manifold | — | ✅ |
| Carburetor & fuel system | — | ✅ |
| Distributor & ignition | — | ✅ |
| Exhaust manifolds | — | ✅ |
| Oil pan | — | ✅ |
| Valve covers & timing cover | — | ✅ |
| Water pump & thermostat | — | ✅ |
| Harmonic balancer | — | ✅ |
| Flexplate / flywheel | — | ✅ |
| Air cleaner & spark plugs | — | ✅ |
Remanufactured vs. Rebuilt vs. Used — Comparison
| Feature | VEGE DFE4 Remanufactured | Typical Rebuilt | Junkyard Used |
|---|---|---|---|
| Complete teardown to components | ✅ | Partial | ❌ |
| Machined to OE tolerances | ✅ | Rarely | ❌ |
| Original design defects removed | ✅ | ❌ | ❌ |
| New wear parts fitted | ✅ | Some | ❌ |
| Tested & calibrated before crating | ✅ | No | ❌ |
| Drop-in long block ready | ✅ | Varies | ❌ |
| Warranty | ✅ | Limited / None | ❌ |
Frequently Asked Questions
Is the VEGE DFE4 a drop-in replacement for my 1970s F-150 or LTD?
Yes — as a long block, the DFE4 installs using your original intake manifold, carburetor, ignition, exhaust manifolds, water pump, balancer and flexplate from the original 400 V8. Confirm your engine is the 400 (not the 351M) with our team before ordering — casting numbers or VIN settle it instantly.
How do I tell the difference between a Ford 400 and a 351M?
Both share the same engine family and look nearly identical externally. The 400 has a taller deck and different crank stroke — check the casting numbers on the block (400s carry a 400 casting ID) or measure stroke. Send us your casting numbers and we’ll identify it for you.
Does the DFE4 include the carburetor, intake and distributor?
No — this is a long block. It includes the assembled block, cylinder heads, valvetrain, oil pump and gasket. Intake, carburetor, ignition, exhaust manifolds, oil pan, valve covers, timing cover, water pump, balancer and flexplate transfer from your original engine.
Is the Ford 400 a good hot rod engine?
Excellent — the 400’s long stroke delivers big-block-style torque from a compact package, making it a favorite for traditional street rods, gassers and customs. Its 385-series architecture also accepts plenty of performance parts.
Do I need to return my old engine core?
Core policy varies by order type — many VEGE engines are available with no core required. Contact NH Race Engine for current terms.
Recommended Companion Products
What Does It Fit?
Condition & Pre-Delivery Inspection
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Factory process: thermal cleaning, magnetic crack-testing, OEM-tolerance machining, all-new wearable parts, test-bench run
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Our inspection on arrival in Kessel: crate integrity, external damage check, rotation confirmation, casting numbers verified (D1AE/D4AE/D7TE), sealing caps intact
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Your installer should: fit new gaskets and seals on all transfer parts, prime the oiling system before first start, check the C6 converter/flexplate pairing, and follow our installation guides
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Register your warranty on our warranty registration page
Recommended Companion Products
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Browse the full crate engines collection — VEGE Ford big-block and V8 siblings: [DF39 351W] · [DFTE 5.4L Modular] · [DFTH 6.8L V10] and more
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Big-block Chevy instead? [VEGE DCE1/DCH7 454 listings] [LINK IN CMS]
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Custom engine builds if you’d rather build the 400 to a spec
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Core exchange — ask about returning your old engine to lower the price
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