Hyundai Elantra Kia Forte Soul G4NB 1.8L L4 Engine 2014-2016

Description

Vehicle owners battle severe piston slap and high oil consumption caused by cylinder wall scuffing inside Nu engines. This precision rebuilt Hyundai Kia G4NB 1.8L Remanufactured Engine restores factory compression across all combustion chambers. The 1.8L 4-Cylinder 16-Valve DOHC MPI engine requires prompt manual oil system priming prior to initial start to protect camshaft journals.

Die-cast aluminum Nu block casting G4NB incorporates cast iron dry cylinder sleeves align-honed to preserve crankshaft centerline roundness within 0.0003in. A forged steel crankshaft spins on upgraded bi-metal rod and main bearings clearanced to 0.0012in. Aluminum DOHC cylinder heads house sixteen valves actuated by roller rocker arms with hydraulic lash adjusters. Crated long block weight registers 250 lbs with crated envelope dimensions of 38in length by 38in width by 38in height and holds 4.2 quarts oil.

Key Features of Hyundai Kia G4NB

Automotive repair shops buy Hyundai Kia G4NB remanufactured engine assemblies to eliminate piston wrist pin tick and restore factory fuel economy. Fleet mechanics install this remanufactured 1.8L long block replacement to guarantee lasting valvetrain reliability.

• Aluminum block casting G4NB receives precision CNC deck milling to provide optimal multi-layer steel head gasket sealing.
• Forged steel crankshaft journals undergo micro-polishing down to 0.0003in runout to reduce rotational friction under load.
• Plateau-honed cast iron cylinder liners receive diamond crosshatch finishing to seat replacement piston rings within 500 miles.
• Aluminum cylinder head castings receive CNC valve seat cutting to hold 0.001in valve seat runout.
• Upgraded connecting rod bearings maintain 0.0012in oil clearance to prevent hydrodynamic film breakdown.
• Dual continuous variable valve timing phasers receive ultrasonic flushing to ensure prompt oil pressure response.
• Threaded brass oil gallery plugs replace standard press-in balls to eliminate internal crankcase oil leaks.

Dyno Load Precision Machining Tolerances

Dynamometer testing confirms 145 HP at 6,500 RPM and 130 ft-lbs shaft torque at 4,700 RPM on our computer testing cell. Machine shop inspectors verify crankshaft journal runout below 0.0003in TIR while rod bearing oil clearance measures 0.0012in. CNC plateau bore honing holds piston-to-bore clearance at 0.0011in to prevent cold piston slap. Operating engine oil pressure stabilizes at 60 PSI at 3,000 RPM with engine coolant regulated at 195°F. Individual cylinder compression gauges verify balanced readings between 185 PSI and 190 PSI across all four cylinders.

Vehicle Fitment Drivetrain Guide

This remanufactured engine fits 2014 to 2016 Hyundai Elantra, 2014 to 2016 Kia Forte, and 2014 to 2016 Kia Soul models equipped with the 1.8L 1797cc Nu MPI engine and block casting G4NB. It matches 6-Speed Manual and 6-Speed Automatic front-wheel-drive transaxles. This long block does not fit earlier 2.0L Beta engines, direct-injected 2.0L Nu GDI platforms, 1.6L Gamma turbo models, or hybrid vehicle variants.

Installation Protocol Service Requirements

Inspect multipoint fuel injector seals and engine subframe mounts before lowering the long block into the engine bay cradle. Never operate this naturally aspirated commuter motor in forced-induction track builds or stripped buggies lacking external oil coolers. Technicians must flush intake manifold plenums to remove abrasive carbon deposits.

• Pressure-prime internal oil passages with 5W-20 synthetic motor oil before starter engagement to protect camshaft lobes.
• Drain the factory break-in motor oil and install a genuine OEM filter at 500 miles.
• Inspect variable valve timing solenoid operation and check serpentine belt tension at 3,000 miles.

Warranty Terms Core Return Policy

Our standard 3-Year Unlimited-Mile warranty safeguards internal long block components and machine shop labor against defects. We provide free prepaid freight pickup for your rebuildable engine core inside a 30-day window. The crated shipment contains the long block core, pre-installed timing components, oil pan, and valve cover.