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

Description

Roller follower failure and timing chain guide wear cause severe top end rattle in commercial limousine fleets. The VEGE Remanufactured DFEY Long Block Engine eliminates valvetrain collapse through a precision commercial long block repower. This 4.6L 281ci 8-Cylinder motor produces 239HP. Mechanics must verify the crankshaft position sensor reluctor ring air gap clearance prior to transmission installation.

High density ASTM A48 Class 35 iron provides rigid cylinder support within the deep skirt block structure. This VEGE engine core incorporates an induction hardened cast iron crankshaft, forged steel connecting rods, and coated hypereutectic pistons. Cranking demand pulls 165A on heavy duty 12V electrical systems. Dry block weight reaches 505 lbs within exterior boundaries of 28in length, 27in width, 28in height and a 6.0 quarts oil pan.

Key Features of VEGE DFEY

Fleet directors buy VEGE DFEY Long Block Engine inventory to restore smooth executive passenger transit. Precision line boring techniques align all five main bearing saddles to ensure uncompromised durability during each industrial engine rebuild.

• 8-Cylinder deep skirt iron block uses side bolt cross fastening for bottom end stability.
• 16-Valve heads incorporate full steel thread inserts to prevent spark plug blowout under load.
• 4.6L displacement yields 287 ft-lbs torque across steady passenger transport speed bands.
• 0.0014in connecting rod journal clearance maintains uniform hydrodynamic lubrication at high temperatures.
• Hardened cast iron timing tensioner bodies replace composite guides to ensure timing chain control.
• Precision ground camshaft lobes prevent profile scuffing during prolonged idle intervals.
• DFEY commercial core units include a high output gerotor pump with steel backing plate.
• Multi layer steel head gaskets eliminate coolant leaks into the combustion chambers.

Bench Dynamometer Load Metrics

Hot cell brake tests establish 239BHP and 287 ft-lbs torque at 4750 RPM on the DFEY long block engine. Oil gallery sensors confirm 52 PSI delivery pressure with oil sump lubricants held at 195°F during full load testing runs. Pressure gauges record 185 PSI compression across all eight bores with under 3% variance between banks. Exhaust pyrometer probes measure 1190°F under maximum continuous load. Calibrated dial indicators confirm crankshaft snout deflection below 0.0003in TIR across finished journals.

Chassis Clearance Installation Guidelines

Mechanical throttle linkage assemblies require 5 lbs manual pull effort to stroke the throttle body mechanism during installation. This engine is not built for supercharged utility trucks, three-valve variable cam phaser models, or front wheel drive transaxle layouts.

• Drain initial break-in motor oil at 500 miles and service the crankcase with API certified 5W-20 mineral oil.
• Stationary hydraulic lash adjusters maintain zero lash operation without periodic mechanical adjustments or shimming.
• Torque-to-yield cylinder head bolts require complete discard and new fastener installation on every service teardown.

Warranty Coverage Shipment Pack

Protection originates from the VEGE assembly standard 3-Year 100,000-mile commercial warranty. Each heavy timber shipment crate houses the complete assembled long block, aluminum timing cover, stamped steel oil pan, composite valve covers, oil pump pickup screen, and certified dynamometer run test sheets.