VEGE Remanufactured DA31 4.0L 242ci Premium Grade Long Block Engine
Premium grade Jeep restorations require VEGE Remanufactured DA31 4.0L premium grade long block engine packages. We combine a 242 CID iron block with premium cylinder heads and 8.8:1 compression. Mount it.
- 190 HP provides quiet interstate cruising
- Premium grade machining limits friction wear
- Included oil pump handles cooling pressure
- Remanufactured block reduces expensive mechanic labor
- Internal engine balancing dampens high vibrations
Description
Rough commercial route schedules mandate the VEGE DA31 Long Block Engine, built to conquer heavy commercial long block repower cycles in off road utility vehicles. This 4.0L 242 cid Inline-6 creates 190HP at 4,600 RPM and 235 ft-lbs torque. Technicians must check distributor indexing marks on the block face because improper camshaft gear alignment creates hard start conditions.
Solid ASTM A48 Class 35 cast iron shapes the deep web inline block case. A precision ground nodular iron crankshaft pairs with forged steel rods inside this VEGE engine core. Starter draw measures 160A on standard 12V fleet circuits. Dry weight totals 485 lbs within an envelope of 33in length by 20in width by 26in height. Sump holds 6.0 quarts.
Key Features of VEGE DA31
Fleet maintenance directors buy VEGE DA31 Long Block Engine assemblies to shorten shop backlogs during an industrial engine rebuild schedule. High precision hone finishes establish an optimal crosshatch pattern for immediate ring seating.
- High Output intake ports improve cylinder charging efficiency across middle operating RPM bands.
- Hydraulic flat tappet lifters track smooth camshaft lobes to eliminate valvetrain chatter.
- Durable flat top hypereutectic pistons maintain tight piston to wall clearance under heat.
- The DA31 commercial core maintains 0.0016in connecting rod bearing clearance for oil wedge stability.
- Seven main bearing caps lock the rotating assembly into the rigid bottom end cradle.
- High volume oil pumps supply constant lubrication volume to overhead rocker pivots.
- Multi layer steel head gaskets clamp compression tight across the entire deck surface.
Bench Dyno Parameters Thermal Thresholds
Dynamometer testing confirms 190HP at 4,600 RPM plus 235 ft-lbs torque at 3,200 RPM for this DA31 long block engine. Gauge monitors record 50 PSI oil gallery pressure at 2,000 RPM at 195°F operating temperature. Cylinder compression gauges verify 175 PSI across all six cylinders within 4% balance. Crankshaft center journal runout shows 0.0002in TIR. Exhaust gas temperature gauges indicate 1,210°F during extended dyno pulls.
Installation Protocols Maintenance Schedule Directives
Manual throttle return springs demand 4 lbs linkage pull tension for positive closure against engine vibration. Mechanics must avoid this commercial replacement engine for front wheel drive vehicle chassis or applications without high volume inline radiator cooling packages.
- Drain break in oil after 500 miles or 30 operating hours then refill with 10W-30 mineral oil.
- Inspect distributor drive gear mesh and oil pump driveshaft slot engagement before drop in.
- Check cylinder head fasteners in three passes reaching 100 ft-lbs final specification.
Crate Manifest Warranty Protection Details
Every long block carries the VEGE build standard with 3-Year or 100,000-mile parts coverage. The freight crate encloses the long block core, oil pan, front timing cover, valve cover, oil pump pickup, plus official plant signed inspection documents.
VEGE Long Block Crate Engines DA31 Specs
| Brand | VEGE Engines |
| Engine Model | DA31 |
| Part Type | Crate Engines |
| Product Line | VEGE Long Block Crate Engines |
| Engine Type | VRE-DA31 |
| UPC | 653517001451 |
| Actual Engine Displacement | 4.0L/242 |
| Assembled | Yes |
| Intake Manifold Included | No |
| Cylinder Heads Included | Yes |
| Carburetor Included | No |
| Throttle Body Included | No |
| Distributor Included | No |
| Oil Pan Included | No |
| Valve Covers Included | No |
| Timing Cover Included | No |
| Water Pump Included | No |
| Harmonic Balancer Included | No |
| Flexplate Included | No |
| Flywheel Included | No |
| Air Cleaner Included | No |
| Spark Plugs Included | No |
| Spark Plug Wires Included | No |
| Computer Included | No |
| Wiring Harness Included | No |
| Supercharger Included | No |
| Special Attention | Engine includes oil pump and gasket. |













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