VEGE DFA5 4.9L 300ci Heavy Duty Long Block Remanufactured Crate Engine

Description

Restore low speed hauling torque with the VEGE DFA5 Remanufactured Crate Engine heavy duty 4.9L 300ci inline-six long block package. Produces 150 horsepower at 3,400 RPM and 260 lb-ft torque at 2,000 RPM through pushrod overhead valves. Precision computerized hone profiling and deck resurfacing eliminate bore taper, restoring factory compression and stopping oil burning on regular commercial pump gasoline.

Cast iron deep-skirt inline-six block casting incorporates seven main bearing journals to stabilize the crankshaft under massive low-RPM lugging loads. The reciprocating group contains an induction-hardened nodular cast iron crankshaft, forged steel connecting rods, and cast aluminum pistons. Cylinder dimensions detail a 4.00-inch bore, a 3.98-inch stroke, and an 8.8:1 compression ratio. A 6-quart steel oil pan holds dry engine weight at 515 lbs.

Key Features of VEGE DFA5

Fleet managers and commercial operators buy VEGE DFA5 crate engine packages to rebuild legendary work pickups, commercial vans, and industrial tugs. This heavy-duty remanufactured long block drops straight into original truck engine bays while recovering factory pulling torque and emissions compliance.

• 4.00-inch diamond-honed cylinder walls seat molybdenum rings to maintain tight crankcase seals.
• Heavy duty camshaft pushrod grinds optimize low-RPM torque production for commercial cargo transport.
• 1.78-inch intake valves maximize combustion air velocity across low-RPM working throttle points.
• 8.8:1 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.
• Helical timing gears eliminate timing chains to prevent timing drift across high mileage.
• Remanufactured cast iron cylinder heads feature induction hardened valve seats to prevent valve recession.
• The DFA5 replacement engine package features micro-finished crank journals to prolong main bearing life.

Combustion Profile Dynamic Power Output

Engineered for immense low-speed tractive pull, this heavy-duty 4.9-liter inline-six operates with high efficiency between 1,000 and 4,000 RPM. Peak output reaches 150 brake horsepower at 3,400 RPM alongside 260 lb-ft torque at 2,000 RPM on standard 87-octane pump gasoline. Hydraulic valve lifters and conservative camshaft grinds produce 20 in-Hg intake manifold vacuum at 600 RPM hot idle. High-volume oil pumps maintain 45 to 65 PSI oil pressure to safeguard seven main bearing journals under continuous highway hauling loads.

Chassis Integration Bellhousing Structural Fitment

The standardized rear bellhousing pattern bolts straight to corporate truck manual and automatic transmissions without adapter plates. An internal neutral balance layout matches original flywheels and flexplates. Heavy-duty side motor mount bosses align straight with factory truck frame perches, clearing front suspension crossmembers, steering gear boxes, and exhaust manifolds without modification.

Operational Limits Break In Guidelines

Pre-lube the main oil gallery with 10W-30 mineral break-in oil prior to initial engine cranking. Run the engine between 2,000 and 2,500 RPM for twenty minutes to seat the camshaft lobes. This heavy-duty remanufactured long block is not engineered for turbocharger boost over 5 PSI, nitrous oxide systems, or competitive tractor pulling.

• Drain initial break-in oil and install fresh 10W-30 motor oil at 500 miles.
• Inspect exhaust manifold bolts and verify cooling hose tension every 3,000 miles.
• Change engine oil filter and inspect crankcase ventilation valves every 12 months.

Factory Warranty Crate Shipping Manifest

VEGE covers this heavy-duty truck crate unit with a 36-Month or 100,000-Mile remanufactured warranty for commercial and consumer road applications. Physical crate shipments include the complete long block with oil pan, timing cover, complete valvetrain, oil pump, and an individual factory quality inspection sheet.