VEGE DF21 6.6L 400ci Multi Purpose Long Block Remanufactured Crate Engine

Description

Restore high torque vehicle towing capacity with the VEGE DF21 Remanufactured Crate Engine multi purpose 6.6L 400ci long block package. Produces 180 horsepower at 3,800 RPM and 325 lb-ft torque at 1,800 RPM through 335-series overhead valve architecture. Precision computerized hone profiling and deck resurfacing eliminate bore taper, restoring factory compression and stopping oil burning on regular commercial pump gasoline.

Cast iron block casting incorporates large 3.00-inch main journals to stabilize the reciprocating group under severe multi-purpose vehicle demands. The rotating group pairs an induction-hardened nodular iron crankshaft with forged steel connecting rods and hypereutectic aluminum pistons. Cylinder dimensions detail a 4.00-inch bore, a 4.00-inch stroke, and an 8.0:1 compression ratio. A 6-quart steel oil pan holds dry engine weight at 575 lbs.

Key Features of VEGE DF21

Multi-purpose fleet operators and classic truck owners buy VEGE DF21 crate engine units to repower full-size wagons, pickups, and utility vehicles. This remanufactured long block package drops into factory engine compartments while reinstating factory pulling power and emissions standards.

• 4.00-inch diamond-honed cylinder walls seat molybdenum rings to maintain tight crankcase seals.
• Camshaft pushrod grinds optimize low-RPM torque production for cargo transport and towing.
• 2.04-inch intake valves maximize combustion air velocity across low-RPM throttle points.
• 8.0:1 compression ratio pistons prevent pre-ignition knock on regular 87-octane commercial pump fuel.
• 6-quart steel truck oil pans maintain constant oil pickup immersion during steep roadway ascents.
• Dual-strand timing chain sets maintain exact camshaft synchronization without chain slack across high mileage.
• Remanufactured cast iron cylinder heads feature induction hardened valve seats to prevent valve recession.
• The DF21 replacement engine package features micro-finished crank journals to prolong main bearing life.

Combustion Profile Dynamic Power Output

Operating across an effective power band between 1,000 and 4,400 RPM, this 6.6-liter V8 produces 180 brake horsepower at 3,800 RPM alongside 325 lb-ft torque at 1,800 RPM on standard 87-octane pump gasoline. Camshaft specifications provide 192 degrees duration at 0.050-inch lift, drawing 19.5 in-Hg intake manifold vacuum at 600 RPM hot idle. High-volume internal oil pumps maintain 45 to 65 PSI oil pressure to safeguard crankshaft bearings under sustained highway pulling conditions across hot summer weather.

Chassis Integration Bellhousing Structural Fitment

The 385/335 series rear bellhousing pattern bolts straight to corporate truck manual and automatic transmissions without adapter plates. A 28-ounce external balance rotating specification aligns straight with factory flywheels and harmonic balancers. Symmetrical side motor mount bosses line up with original vehicle chassis frame perches, clearing front suspension crossmembers and steering linkages.

Operational Limits Break In Guidelines

Pre-lube the central oil gallery with high-zinc mineral break-in oil prior to initial startup. Run the engine between 2,000 and 2,500 RPM for twenty minutes to seat flat tappet camshaft lobes. This remanufactured long block is not engineered for turbocharger boost exceeding 5 PSI, nitrous injection, or competitive tractor pulling.

• Drain break-in motor oil and install fresh 10W-30 motor oil at 500 miles.
• Inspect valve cover gaskets and check cooling hose clamps every 3,000 miles.
• Change engine oil filter and inspect crankcase ventilation every 12 months.

Factory Warranty Crate Shipping Manifest

VEGE covers this multi-purpose crate unit with a 36-Month or 100,000-Mile remanufactured limited warranty for standard road use. Physical crate shipments include the complete long block with oil pan, timing cover, complete valvetrain, oil pump, and an individual factory inspection test record.