VEGE Remanufactured DFAU 4.6L 281ci Elite Series Long Block Engine

Description

Camshaft lobe wipeout and timing chain slapping disable municipal service vehicles during cold morning calls. The VEGE Remanufactured DFAU 4.6L 281ci Elite Series Long Block Engine cures modular valvetrain failure through a commercial long block repower. This 4.6L 8-Cylinder SOHC build makes 225HP, requiring installers to verify Windsor eleven-bolt versus Romeo eleven-bolt valve cover sealing patterns.

Using an ASTM A48 Class 30 gray iron block, this VEGE engine core houses aluminum 2-valve heads and an induction-hardened cast iron crankshaft. Starter draw measures 155A on 12V circuits. Bare engine weight reaches 480 lbs within 28in length, 28in width, 27in height dimensions holding 6.0 quarts oil.

Key Features of VEGE DFAU

Transit supervisors buy VEGE Remanufactured DFAU 4.6L 281ci Elite Series Long Block Engine assemblies to eliminate timing guide failures across municipal vehicle pools. Heavy-duty cast iron timing chain tensioners provide positive mechanical chain dampening to eliminate startup rattle and chain guide fracture.

• Bore diameter measures 3.552in paired with a 3.543in stroke to deliver dependable commercial torque.
• Full-depth steel spark plug thread inserts prevent high-pressure blowout failures permanently.
• Heavy-duty cast iron timing tensioners maintain constant chain tension across fluctuating oil temperatures.
• Micro-finished overhead camshaft journals minimize friction inside the aluminum cylinder head towers.
• DFAU commercial core precision line-boring guarantees true crankshaft journal rotation under heavy loads.
• Hydraulic lash adjusters provide zero-maintenance valvetrain operation throughout engine life.
• Multi-layer steel head gaskets lock high combustion pressures inside cylinder bores under load.

Dyno Test Cell Metrics

Hot bench runs measure performance parameters on each DFAU long block engine before dispatch. The engine develops 225HP at 4800 RPM alongside 286 ft-lbs torque at 3500 RPM. Sump oil gallery pressure stabilizes at 52 PSI at 195°F operating temperature. Cylinder compression gauges show 170 PSI across all ports with 3% variance. Crankshaft runout checks at 0.0003in TIR. Dynamic exhaust gas temp stabilizes at 1220°F under dyno loading.

Operational Exclusions Setup Protocols

Mechanical throttle lever operation needs 5 lbs pull resistance. This SOHC 2-valve modular unit is NOT suited for 3-valve or 4-valve modular harness applications, direct-injection computer platforms, or transverse front-wheel-drive sedans.

• Perform break-in oil and filter changes following the initial 500 miles of highway driving.
• Inspect front accessory drive belt tensioner alignment after the first 100 hours of run time.
• Check cam cover perimeter fastener torque to 8 ft-lbs following initial thermal normalization runs.

Commercial Protection Included Hardware

Built under strict VEGE assembly standard protocols, this remanufactured powertrain includes a 3-Year 100,000-mile commercial warranty. Uncrating reveals the remanufactured long block core, oil pan, timing cover, cam covers, oil pump pickup screen, and certified test sheet.