Vortec 6.0L V8 (LQ9) Engine Specs

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Vortec 6.0L V8 (LQ9) Engine Overview

Getting increase the engine capacities review, now we are climb to 6.0L engine capacities that available at 3rd generation of Vortec engines family.  Named with Vortec 6.0L V8 (LQ9) Engine, so what is the different with LQ4 series?, the one that we are recognize is the compression ratio of this Vortec 6.0L V8 (LQ9) Engine  it has 10.0: 1 compression rate compare with LQ4 that only has 9.4:1. This engine is has 5967cc (364 ci) of displacement specs. Just like the others vortec engine this Vortec 6.0L V8 (LQ9) Engine is assembly at Romulus, Michigan united state. On this engine we’ll faced a completed 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

Vortec 6.0L V8 (LQ9) Engine Specs

Is compression rate is the only one different thing between this engine compared with LQ4 engines code? Lets find out through this detailed Vortec 6.0L V8 (LQ9) Engine Specs, after that you compared with last article that have been made about Vortec 6.0L V8 (LQ4) Engine Specs

Specs Item Specs
Engine Type Vortec 6.0L V8
Engine Code LQ9
Engine Electronic integrated into the dual microprocessor PCM
Displacement 5967cc (364 ci)
Transmission Type 5 speed manual and 4,6 speed automatic
Compression Ratio 10.0 : 1
Bore and Stroke (in.) 4.0 x 3.6
Valve configuration (pcs) overhead valves (2 valves per cylinder)
Valve Lifters hydraulic roller
Champ type Double overhead Champ
Fuel System sequential fuel injection
Recommended Fuel premium fuel recommended
Emissions controls evaporative system

catalytic converter

positive crankcase ventilation

return less fuel system

Maximum engine speed 6000 rpm
Horsepower(SAE net@rpm) 345 hp ( 257 kw ) @ 5200 rpm
Torque (lb. ft. @ rpm) 380 lb-ft ( 515 Nm ) @ 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
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

Based on this specs the different is on:

  • Compression rate
  • Horsepower output
  • Torque output
  • Fuel recommendation

Vortec 6.0L V8 (LQ9) Engine Applications

The Vortec 6.0L V8 (LQ9) Engine is applicable for

  • GMC Sierra ( Classic )
  • Chevrolet Silverado ( Classic )

Vortec 6.0L V8 (LQ9) Engine

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2 Thoughts on “Vortec 6.0L V8 (LQ9) Engine Specs

  1. William George on April 22, 2014 at 6:25 pm said:

    Can you run regular (87) or (87) gasoline in this engine with out damage?

    • Ron gravel on June 8, 2014 at 6:29 pm said:

      If you were to run the cheaper 87oct fuel not only will your engine not run to its potential but in the long run cost you more money in fuel because it will not efficiently combust. So fuel that is 30cents a gal more will accutlly give you better gas mileage hence saving you money on fuel. So if useing 87 gets you say 20mpg at $4.00 a gal and you were to run 93 and get 23mpg for 93oct $4.30 in the long run you engine will run better last longer and get better mileage for 30cents a gal more. (Just a exsample). So the Answer to you question is yes you can run 87 in your car/truck but won’t end up saving you any money due to the fact that your gas mileage will decrease and you engine will prematurely wear.

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