VEGE Remanufactured DFEH 4.6L 281ci Premium Grade Long Block Engine

Description

Shallow spark plug thread depth causes sudden plug blowout and hood damage on commercial transport vans. The VEGE Remanufactured DFEH 4.6L 281ci Premium Grade Long Block Engine cures chronic head thread failure through a commercial long block repower. This 4.6L 8-Cylinder SOHC build develops 215HP, but mechanics must verify oil filter adapter gasket passage alignment before chassis installation.

Poured from ASTM A48 Class 30 gray iron, this VEGE engine core utilizes aluminum 2-valve cylinder heads and an induction-hardened cast iron crankshaft. Cold starter draw pulls 155A at 12V. Dry weight registers 480 lbs inside 28in length, 28in width, 27in height dimensions with 6.0 quarts oil capacity.

Key Features of VEGE DFEH

Municipal mechanics buy VEGE Remanufactured DFEH 4.6L 281ci Premium Grade Long Block Engine assemblies to eliminate spark plug ejection breakdowns across aging taxi and patrol fleets. Steel spark plug inserts provide full thread engagement into the aluminum cylinder heads to permanently stop plug blowouts under pressure.

• Displacement measures 281ci utilizing a 3.552in bore and 3.543in stroke rotating assembly.
• Full-depth steel spark plug thread inserts prevent high-pressure plug ejection failures permanently.
• Aluminum cylinder heads improve thermal conductivity to stop hot-spot detonation under cargo load.
• Upgraded cam timing tensioner seals stop oil pressure bleed-down and chain guide slapping.
• DFEH commercial core line-boring guarantees true crankshaft journal rotation under heavy loads.
• Hydraulic lash adjusters provide zero-maintenance valvetrain operation throughout engine life.
• Tri-metal copper-lead bearings withstand persistent low-speed delivery route idling periods.

Shop Test Stand Tolerances

Testing on every single DFEH long block engine guarantees factory-spec power delivery. The assembly achieves 215HP at 4800 RPM and 285 ft-lbs torque at 3500 RPM. Sump oil gallery pressure holds 50 PSI hot at 195°F operating temperature. Cylinder compression verifies 170 PSI across all cylinders with 3% variance. Crank journal runout limits to 0.0003in TIR. Steady exhaust gas temp settles at 1220°F under dyno loading.

Operational Exclusions Setup Protocols

Throttle body linkage pull measures 5 lbs force. 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.

• Drain break-in motor oil and install a fresh oil filter after the initial 500 service miles.
• 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.

Warranty Statement Shipping 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.