VEGE DFA3 7.5L 460ci Heavy Duty Long Block Remanufactured Crate Engine

Description

Eliminate chronic low oil pressure with the VEGE DFA3 Remanufactured Crate Engine heavy duty 7.5L 460ci long block package. Produces 245 horsepower at 3,600 RPM and 400 lb-ft torque at 2,200 RPM through big-block 385-series architecture. Precision line boring and computerized hone profiling restore cylinder roundness to eliminate crankcase blowby and overcome loss of compression on standard pump fuel.

Cast iron 385-series block casting features two-bolt main bearing caps reinforced with thick structural webs to stabilize the reciprocating group under severe commercial truck demands. The internal rotating group pairs a nodular cast iron crankshaft with forged steel connecting rods and hypereutectic aluminum pistons. Cylinder dimensions detail a 4.36-inch bore, a 3.85-inch stroke, and an 8.0:1 compression ratio. A 7-quart steel oil pan holds dry engine weight at 640 lbs.

Key Features of VEGE DFA3

Commercial fleet operators buy VEGE DFA3 crate engine units to repower heavy-duty work pickups, commercial dump trucks, and chassis cabs. This heavy-duty remanufactured long block drops straight into original truck chassis bays while recovering factory hauling power and emissions compliance.

• 4.36-inch diamond-honed cylinder walls seat molybdenum rings to maintain tight crankcase seals.
• Heavy duty camshaft pushrod grinds optimize low-RPM torque for heavy utility cargo hauling.
• 2.08-inch intake valves maximize air charge volume for dependable off-idle vehicle pull.
• 8.0:1 compression ratio pistons burn regular 87-octane commercial pump fuel with high efficiency.
• 7-quart steel truck oil pans maintain constant oil pickup immersion during steep highway ascents.
• Dual-strand timing chain sets maintain camshaft synchronization without chain slack across high mileage.
• Remanufactured cast iron cylinder heads feature induction hardened valve seats to prevent valve recession.
• The DFA3 replacement engine package includes 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 heavy-duty 7.5-liter big-block V8 produces 245 brake horsepower at 3,600 RPM alongside 400 lb-ft torque at 2,200 RPM on standard 87-octane pump gasoline. Camshaft specifications provide 194 degrees duration at 0.050-inch lift, drawing 19 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-series rear bellhousing pattern bolts straight to corporate truck and passenger car transmissions without adapter plates. An internal neutral 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 big-block crossmembers and steering linkages.

Operational Limits Break In Guidelines

Pre-lube the central oil gallery with 10W-30 mineral break-in oil prior to initial starter engagement. Run the engine through a standard twenty-minute thermal cycling procedure while monitoring coolant temperature. This heavy-duty remanufactured long block is not engineered for turbocharger boost exceeding 5 PSI, nitrous injection, or competitive tractor pulls.

• 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 heavy-duty 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.