VEGE Remanufactured DFCF 4.6L 281ci High Performance Long Block Engine

Description

Halt recurring fleet valvetrain failure with the VEGE DFCF Long Block Engine, built for commercial long block repower projects in high output commercial applications. This 4.6L 281 cid DOHC 32-Valve V8 produces 305HP at 5,800 RPM. Technicians must check secondary timing chain tensioner shoe condition before front cover installation to prevent cam timing retard.

Solid ASTM A48 Class 35 cast iron shapes the deep skirt 90° block casting with cross bolted main caps. A forged 4340 steel crankshaft pairs with forged connecting rods inside this VEGE engine core. Starter draw measures 170A on 12V fleet circuits. Dry weight scales at 510 lbs across dimensions measuring 28in length by 27in width by 28in height. Pan capacity holds 6.0 quarts.

Key Features of VEGE DFCF

Fleet supervisors buy VEGE DFCF Long Block Engine packages to avoid machine shop queues during an industrial engine rebuild turnaround. Remanufacturing operations install new lifters and bronze valve guides to ensure true valve seating across thousands of operating hours.

• Dual overhead camshafts actuate four valves per cylinder through direct bucket tappets for valve control.
• CNC surfaced deck faces maintain 30 Ra microinch smoothness for multi layer steel gasket retention.
• Hypereutectic pistons resist ring land micro welding under continuous high speed highway runs.
• The DFCF commercial core maintains 0.0016in rod bearing oil clearances under heavy dynamometer loads.
• Primary and secondary hydraulic timing chain tensioners maintain accurate cam timing under shock loads.
• Cross bolted main caps lock crankshaft journals into the deep skirt engine block register.
• Multi layer steel head gaskets clamp down to eliminate combustion bore leakage.

Dynamometer Bench Parameters Pressure Benchmarks

Dynamometer runs record 305HP at 5,800 RPM alongside 320 ft-lbs torque at 4,200 RPM for this DFCF long block engine. Pressure sensors track 52 PSI oil gallery pressure at 2,000 RPM while maintaining 195°F coolant operating temperature. Combustion chamber compression balances at 180 PSI across all eight cylinders within 4% variance. Crankshaft dial indicators confirm 0.0003in TIR total runout. Exhaust manifold pyrometers measure 1,240°F under steady brake load testing.

Field Usability Scheduled Maintenance Directives

Mechanical throttle cable connections require 4 lbs pull force across the bellcrank pivot travel. Fleet mechanics must avoid this commercial replacement engine for conversions lacking factory electronic transmission controllers or vehicles with undersized single core radiators.

• Evacuate initial run break in oil after 500 miles or 30 fleet hours then refill with 5W-30 motor oil.
• Inspect secondary timing chain tensioner oil feed ports for cleanliness prior to front cover install.
• Check cylinder head bolts in three progressive stages reaching 85 ft-lbs final torque spec.

Crate Manifest Verified Warranty Protection

Backed by the VEGE build standard, this package includes a 3-Year or 100,000-mile limited replacement warranty. The wooden shipping container holds the remanufactured long block core, oil pan, timing cover, valve covers, oil pump pickup tube, plus certified factory inspection test sheets.