Saab 9-2X Subaru Impreza EJ20D 2.0L H4 Engine 2002-2005

Description

An exact 1994cc displacement with factory shimless bucket lifters allows the Saab 9-2X EJ20D Remanufactured Engine to restore valvetrain stability at high engine speeds. This opposed 4-Cylinder 16-Valve DOHC long block features RHS20 cylinder head castings. Diamond plateau honed cylinders guarantee quick piston ring seating. Technicians must pre-lube the oil pump before initial ignition to protect camshaft journal bearings.

High-tensile die-cast aluminum alloy forms the horizontally split crankcase halves bearing casting codes EJ20 and 20R/S20CR on the right front casing. Twin RHS20 and LHS20 aluminum cylinder heads feature 16 valves actuated by dual overhead camshafts with precision shimless bucket lifters. Bare long block weight measures 217 lbs. Packaging crate dimensions span 36in length, 36in width, and 36in height, with a 4.2 quarts oil capacity in the pan.

Key Features of Saab Subaru EJ20D

Automotive rebuilders buy Saab 9-2X EJ20D remanufactured engine assemblies to repower Swedish and Japanese all-wheel-drive sport wagons with genuine factory tolerances. This balanced boxer long block eliminates head gasket failure points on aging chassis platforms.

• Shimless bucket lifters eliminate disc spit failures and ensure uniform valve clearance across high RPM ranges.
• Opposed cylinder configuration provides natural mechanical balance to suppress engine vibration under load.
• Pre-assembled timing belt, idler pulleys, and automatic tensioner reduce shop installation turnaround time.
• Factory new water pump comes bolted to the front casing to ensure reliable coolant circulation.
• Upgraded multi-layer steel head gaskets seal combustion fire rings against coolant jacket leaks.
• Line-honed split crankcase main bearing journals preserve hydrodynamic oil wedge formation under load.
• Dual overhead camshafts actuate 16 valves to maximize air charge flow across all four cylinders.

Boxer Engine Dyno Machining Specifications

Dynamometer spin tests demonstrate 160HP at 6,400 RPM and 148 ft-lbs torque at 3,200 RPM on pump gasoline. Crankshaft main journal runout measures within 0.0003in TIR across induction-hardened journal pins. Connecting rod oil clearances hold at 0.0012in to prevent bearing surface scuffing during full-throttle acceleration. Hot oil pressure registers 58 PSI at 3,000 RPM with engine coolant temperature regulated at 192°F. Cylinder compression tests record 185 PSI across all four opposed cylinders, confirming uniform piston ring seating and valve seat concentricity.

Vehicle Fitment Drivetrain Guide

This EJ20D long block fits 2003 to 2005 Subaru Impreza models and 2005 Saab 9-2X linear sport wagons produced between April 2002 and May 2005. The rear engine mounting face matches 5-Speed manual and 4-Speed automatic all-wheel-drive transaxles. Right and left cylinder head casting numbers read RHS20 and LHS20. This engine does not fit earlier 2000 to 2002 Impreza models with disc-shim lifters or turbo EJ205 WRX setups.

Installation Protocol Service Requirements

Pedestal mechanical throttle cables require clean travel without tight radius bends in the engine compartment. Install new spark plugs and check exhaust heat shield clearances during bay prep. Do not drop this naturally aspirated shimless-lifter engine into high-boost turbo builds or off-road buggies lacking secondary oil filtration.

• Drain initial break-in engine oil and swap the spin-on filter after 500 operating miles.
• Inspect timing belt condition and accessory belt tension every 15,000 driving miles.
• Change motor oil and filter every 3,000 miles using 5W-30 viscosity engine oil.

Warranty Terms Core Return Policy

Warranty coverage guarantees a 3-Year Unlimited-Mile replacement protection plan on internal lubricated engine rotating parts. Core return policies provide a 30-day window with prepaid freight pickup for original cores. The secure crate includes the remanufactured long block, pre-installed timing components, water pump, oil pan, and shop documentation.