VEGE Remanufactured DF23 7.5L 460ci Industrial Grade Long Block Engine

Description

Severe cylinder bore taper ruins engine vacuum without the VEGE DF23 Long Block Engine, built for commercial long block repower projects in heavy wrecker and dump truck applications. This 7.5L 460 cid big block produces 245HP at 4,000 RPM. Technicians must check exhaust port bolt thread condition because thermal expansion can strip factory threads.

Solid ASTM A48 Class 35 cast iron shapes the massive 90° big block casting. A cast nodular iron crankshaft pairs with forged steel connecting rods inside this VEGE engine core. Starter draw measures 185A on standard 12V fleet circuits. Dry weight totals 640 lbs within an envelope of 31in length by 28in width by 30in height. Sump holds 6.0 quarts.

Key Features of VEGE DF23

Commercial contractors buy VEGE DF23 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.

• Heavy duty cast iron cylinder heads feature large ports to promote continuous low speed pulling torque.
• A flat tappet or hydraulic roller camshaft profile maintains broad power bands under heavy loads.
• Hypereutectic pistons resist thermal growth to eliminate bore scuffing under full payload towing.
• The DF23 commercial core holds 0.0018in connecting rod bearing clearance for oil film durability.
• Deep main bearing webs provide bottom end structural rigidity against extreme rotational torque.
• High output oil pumps supply constant lubrication volume to internal galleys to prevent journal wear.
• Multi layer steel head gaskets clamp compression tight across the entire deck surface.

Dynamometer Test Limits Thermal Thresholds

Dyno validation charts indicate 245HP at 4,000 RPM and 395 ft-lbs torque at 2,400 RPM on this DF23 long block engine. Gauge monitors show 55 PSI oil gallery pressure at 2,000 RPM when test sump lubricant reaches 195°F. Compression testing measures 175 PSI across all eight cylinders within 4% balance. Crankshaft center journal runout remains under 0.0003in TIR. Exhaust gas temperature probes register 1,220°F during extended test pulls.

Field Handling Routine Maintenance Directives

Manual throttle return springs demand 5 lbs linkage pull tension for positive closure against engine vibration. Mechanics must avoid this heavy duty replacement engine for light vehicle chassis lacking structural crossmembers for 640 lbs engine blocks or vehicles with low capacity cooling cores.

• Drain break in crankcase oil after 500 miles or 30 operating hours then install 15W-40 heavy duty oil.
• Inspect exhaust manifold mounting flanges for flatness prior to installing exhaust gaskets.
• Torque cylinder head fasteners in three passes reaching 135 ft-lbs final specification.

Crate Manifest Warranty Terms Overview

The VEGE build standard provides a 3-Year or 100,000-mile parts warranty for total customer peace of mind. Crate shipments contain the remanufactured long block core, oil pan, front timing cover, valve covers, oil pump, plus official signed quality inspection reports.