2009-2013 Infiniti FX50, QX70 VK50VE 5.0L Remanufactured Engine

Description

High-strength aluminum alloy block architecture absorbs extreme combustion pressure spikes while hypereutectic aluminum pistons resist thermal expansion during grueling commercial transport operations in the Infiniti VK50VE 5.0L Remanufactured Engine engineered for 2009 to 2013 Infiniti FX50 and QX70 commercial crossover fleet vehicles. This 32-valve DOHC V8 platform with VVEL restores high power output and lasting mechanical durability.

Cast from high-strength aluminum alloy with cast-in iron cylinder liners, this 90-degree V8 incorporates an aluminum lower crankcase bedplate that halts bottom-end deflection during high-RPM expressway transit. A micro-polished forged steel crankshaft turns within tri-metal bearings, linked to forged steel connecting rods and graphite-coated hypereutectic pistons. Cylinder decks receive an Ra 30 finish for MLS gasket sealing. Dry weight registers at 465 lbs with a 7.2-quart capacity aluminum oil pan.

Key Features of Infiniti VK50VE 5.0L

Executive transport fleet directors buy Infiniti VK50VE 5.0L remanufactured engine packages to keep high-performance corporate crossovers running on schedule. Every remanufactured long block undergoes vacuum decay testing to guarantee total fluid circuit separation before crate departure.

• Variable Valve Event and Lift systems optimize intake valve lift and duration for high efficiency
• Dual overhead camshafts per bank actuate thirty-two valves to support 6800 RPM engine operations
• 0.0011 to 0.0018 inch main bearing clearances maintain solid hydrodynamic lubrication film strength
• Multi-layer steel cylinder head gaskets maintain combustion seals across extreme summer transit heat
• High-flow internal trochoid oil pumps channel pressurized lubricant to overhead camshaft journals
• Induction-hardened valve seats prevent valve face recession during sustained highway cruise operations
• Precision rotating package balancing protects Infiniti VK50VE 5.0L driveline parts from vibration

VK50VE Operational Combustion Parameter Limits

Operating lubricant pressure produces 22 to 28 PSI during warm idle and expands to 55 through 70 PSI at 2800 RPM cruise speeds. Internal coolant temperatures stabilize between 188°F and 202°F through regulated cross-flow cooling circulation. This 5.0-liter DOHC V8 generates 390 horsepower at 6500 RPM and 369 lb-ft continuous torque at 4400 RPM with a 10.9:1 compression ratio. Cylinder cranking pressure measures between 175 and 190 PSI across all eight chambers. The cooling system rejects 4400 BTU per minute during full-throttle highway transit.

VK50VE Crankshaft Transmission Alignment Specs

A 6-bolt rear crankshaft flange mounts flush to factory 7-speed automatic transmission flexplates. Measured crankshaft thrust endplay checks out between 0.0030 and 0.0070 inches. The 1.250-inch front crankshaft snout features a single keyway to position the timing chain drive gear and harmonic balancer, holding true serpentine accessory belt pulley alignment.

VK50VE Fleet Lubricant Servicing Protocols

Technicians must prime the engine oil pump prior to first startup by cranking the starter without ignition until oil pressure warning lamps extinguish. Fill the crankcase with 5W-30 full synthetic motor oil meeting API service standards. This production engine is not engineered for turbocharging exceeding factory parameters, nitrous injection, or competitive track racing.

• Check crankcase oil level and coolant tank fluid volume each shift before driving
• Drain break-in motor oil and install fresh oil filter after 500 initial miles
• Perform routine oil and filter changes every 4000 miles during commercial transit cycles

VK50VE Commercial Warranty Freight Manifest

Commercial fleet purchasers receive a 3-Year / 100,000-Mile commercial fleet warranty covering structural casting and internal moving components. The heavy-duty wood crate contains one remanufactured long block engine, a complete engine install gasket set, spark plug well seals, front timing cover seals, dyno test documentation, and priming instructions.