Chevy 5.3 Engine 2014-2019 vin C L83 with DOD & VVT

Description

An 11.0:1 high-compression ratio combined with 2,175 PSI direct fuel injection pressure outputs 355 continuous horsepower to propel gross payload laden vocational fleet trucks using this Chevy 5.3L L83 Remanufactured Engine. Configured for 2014 to 2019 commercial pickups, this EcoTec3 Gen V aluminum platform retains active fuel management and variable valve timing for superior highway efficiency.

Featuring high-strength A319 cast aluminum construction, this deep-skirt block utilizes cast iron cylinder liners honed to an Ra 25 micro-inch deck finish. A micro-polished forged steel crankshaft spins on tri-metal bearings within cross-bolted six-bolt main bearing caps. Forged powdered metal connecting rods carry direct-injection hypereutectic pistons with combustion bowls. Dry block weight equals 410 lbs with an 8.5-quart structural oil pan capacity.

Key Features of Chevy 5.3L

Fleet maintenance supervisors buy Chevy 5.3L remanufactured engine packages to maximize vehicle uptime across demanding municipal utility fleets. Every production unit undergoes automated hot-run testing to verify bearing clearances and dynamic oil pressure integrity under severe load.

• Variable valve timing phaser optimizes camshaft advance to broaden low-RPM cargo pulling torque.
• Active fuel management valvetrain components maintain cylinder deactivation capabilities for highway economy.
• Direct injection cylinder head architecture accelerates fuel atomization for cleaner exhaust emissions.
• Multi-layer steel cylinder head gaskets withstand 215 PSI dynamic combustion strokes without failure.
• Chevy 5.3L variable-displacement vane oil pump maintains exact lubrication pressure across all speeds.
• Cross-bolted main bearing caps provide maximum bottom-end rigidity under sustained towing loads.
• Diamond plateau cylinder honing provides rapid moly ring seat without cylinder bore burnishing.
• Cast-in iron cylinder liners resist bore ovalization under continuous high-thermal work cycles.

EcoTec3 Direct Injection Combustion Metrics

Operating parameters require 24 PSI hot idle pressure and 45 to 65 PSI hot cruise pressure under load. Operating thermostat regulation maintains coolant heat between 195°F and 210°F during vocational service cycles. Dyno-verified output reaches 355 continuous horsepower at 5,600 RPM and 383 lb-ft torque at 4,100 RPM. An 11.0:1 compression ratio operates within 205 to 215 PSI cylinder pressure thresholds. Radiator circuits reject 4,400 BTU/min heat during severe commercial fleet operations across regional freight corridors.

EcoTec3 Crankshaft Driveline Interface Dimensions

The one-piece rear main crankshaft flange carries an 8-bolt flexplate bolt pattern engineered for 6L80 and 8L90 automatic transmissions. Crankshaft snout measures 1.259 inches with standard keyways for dynamic balancer installation. Crankshaft endplay checks out between 0.003 and 0.007 inches using precision dial indicators. Torque converter pilot bore centers commercial automatic transmission input shafts without friction.

Direct Injection Priming Maintenance Protocols

Pre-lubricate oil circuits with an external pressure canister prior to first start to safeguard dry cam bearings and phasers. Fill radiator with approved Dex-Cool 50/50 mixture using vacuum cooling tools to prevent hot spots. Not engineered for supercharged racing applications, continuous marine salt water usage, or vehicles exceeding factory gross axle ratings.

• Inspect external accessory belt drive alignment and fluid levels each shift.
• Check high-pressure fuel rail fittings and connections every 50 operating hours.
• Change crankcase motor oil and heavy spin-on filter every 5,000 miles.

EcoTec3 Commercial Fleet Warranty Manifest

Protected by an elite 3-Year / 100,000-Mile commercial fleet warranty covering parts and block manufacturing integrity. The reinforced transport crate includes the remanufactured long block engine, high-output oil pump, oil pickup tube, complete engine gasket set, installation guidelines, and dynamometer balance test reports.