Vortec 4800 4.8L V8 (LR4) Engine Specs

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Vortec 4800 4.8L V8 (LR4) Engine Overview

Just same with the young brothers Vortec 4.3L, this Vortec 4800 4.8L V8 (LR4) Engine also built at Romulus, Michigan United State, Actually there are 1 place more this engine is built take place, it built also at St. Catharine, Ontario O. This engine is the 3rd generation of Small block V8 truck engine. This Vortec 4800 4.8L V8 (LR4) Engine is has 4807cc (293 ci) of displacement point with compression ratio at 9.5:1. The material that used to build this engine is from cast iron for the engine block. While for cylinder head it’s make with cast aluminum as the raw material. If we are look at the Crankshaft material you’ll find the steel material was used to build this part. It’s also offering tones of additional features such as extended life spark plugs, extended life coolant, oil level sensor, oil life system, electronic throttle control, floating pin pistons, GF4 oil rate based diagnostics. Just additional information for this Vortec 4800 4.8L V8 (LR4) Engine, try to always using recommended oil for your engine to maintain the good performance of the engine. Here is some oil recommendation for your Vortec 4800 4.8L V8 (LR4) Engine.

  • 5W-30
  • 10W-30

Vortec 4800 4.8L V8 (LR4) Engine specs

Enough for the overview speech and here they are the detailed of Vortec 4800 4.8L V8 (LR4) Engine specs.

Specs Item Specs
Engine Type Vortec 4800 4.8L V8
Engine Code LR4
Engine Electronic integrated into the dual microprocessor PCM
Displacement 4807cc (293 ci)
Transmission Type 5 Speed Manual , 4 Speed Auto
Compression Ratio 9.5:1
Bore and Stroke (in.) 3.8 x 3.27
Valve configuration (pcs) overhead valves (2 valves per cylinder)
Valve Lifters hydraulic roller
Champ type Double overhead cam (DOHC)
Fuel System sequential fuel injection
Recommended Fuel regular unleaded
Emissions controls evaporative system

catalytic converter

positive crankcase ventilation

returnless fuel system

Maximum engine speed 5700
Horsepower(SAE net@rpm) 295 hp @ 5600 rpm
Torque (lb. ft. @ rpm) 305 lb.-ft. @ 4000 rpm
Intake Manifold  Material composite
Exhaust manifold material high silicon molybdenum

cast nodular iron

Engine block material cast iron
Cylinder head material cast aluminum
Ignition system composite distributor, platinum-tipped spark plugs, low-resistance spark plug wires
Features extended life spark plugs

extended life coolant

oil level sensor

oil life system

electronic throttle control

floating pin pistons

GF4 oil

rate based diagnostics

Vortec 4800 4.8L V8 (LR4) Engine Applications

This Vortec 4800 4.8L V8 (LR4) Engine is used for:

  • GMC Sierra 1500 ( Classic )
  • GMC Savana 2500
  • Chevrolet Silverado 1500 ( Classic )
  • Chevy Express 2500

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Vortec 4800 4.8L V8 (LR4) Engine

One Thought on “Vortec 4800 4.8L V8 (LR4) Engine Specs

  1. the 4.8 lr4 does not have DOHC, and it most certainly was not an option.

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