6.2l v-8 afm vvt di (l86) - gm powertrain oem salesl86)_020315.pdf · 6.2l v-8 afm vvt di (l86)...

Next Generation Technology

State-of-the-Art technologies:

Direct injection technology: •Movesthepointwherefuelfeedsintoan engineclosertothepointwhereitignites, enablinggreatercombustionefficiency. •Fostersamorecompleteburnofthefuelinthe air-fuelmixture. •Operatesatalowertemperaturethanconventional portinjection. •Allowsthemixturetobeleaner,solessfuelis requiredtoproducetheequivalenthorsepowerof aconventional,portinjectionfuelsystem

Active Fuel Management (AFM) Technology •Expandstherangeofoperationbymorethan 10percent. •AFMtemporarilydeactivatesfourofthecylinders ontheV-8enginesunderlightloadconditions– effectivelyoperatingasaV-4 •Whencylindersaredeactivated,theengine’s pumpingworkisreduced,whichtranslates intoreal-worldfueleconomyimprovements •Seamlesslyreactivatesallcylinderswhenfull powerisdemanded.

Variable Valve Timing (VVT): •Thedual-equalcamphasingsystemadjusts camshafttimingatthesamerateforbothintake andexhaustvalves •Allowslineardeliveryoftorque,withnear-peak levelsoverabroadrpmrange,andhighspecific outputwithoutsacrificingoverallengineresponse.

Variable Displacement Pump: •AdvancedOilingSystem

GM engineers spent over 10 million hours creating the

Next Gen technology.   Every millimeter of the combustion

system was carefully designed to support the most ideal

combination of direct injection, active fuel management

and variable valve timing, making the most of power,

torque and efficiency.

Additional Features:

Allnewweightsavingaluminumcylinderblockcasting

Allnewcylinderheaddesignwithnewportshape andvalveplacement

Increasedcompressionratios

Advancedoilingsystem-variabledisplacementpump

High-strengthaluminumalloypistons

Oil-jetpistoncooling

Stronger,largerdiameterpushrods

Highflowintakemanifoldandelectronicthrottle

Iridiumtipped,extendedlife,sparkplugs

58xcranktiming

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6.2L V8 (L86)

Chevrolet Silverado (Dbl., Crew)GMC Sierra (Dbl., Crew)

TORQ

UE

(lb-f

t)

HO

RSEP

OW

ER (h

p)

ENGINE SPEED (rpm x 1000)

420 hp (313 kW) @ 5600 rpm460 lb-ft (624 Nm)

@ 4100 rpm

Informationmayvarywithapplication.Allspecificationslistedarebasedonthelatestproductinformationavailableatthetimeofpublication.Therightisreservedtomakechangesatanytimewithoutnotice.

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6.2LV-8AFMVVTDI(L86)

Specifications

Displacement: 6162cc(376ci) Engine Orientation: Longitudinal Compression ratio: 11.5:1 Valve configuration: overheadvalves Valves per cylinder: 2 Assembly site: TonawandaandSt.Catherines Valve lifters: hydraulicroller Firing order: 1-8-7-2-6-5-4-3 Bore x stroke: 103.25x92mm Fuel system: DI Fuel type: Premiumrecommended Max. Engine Speed: 6000rpm Emissions controls: Catalyticconverter Three-waycatalyst Positivecrankcaseventilation Applications: Horsepower:hp(kw) ChevroletSilverado 420hp(313kW)@5600RPMGMCSierra Applications: Torque:lb-ft.(Nm) ChevroletSilverado 460lb-ft.(624Nm)@4100RPMGMCSierraActualpowerlevelsmayvarydependingonOEMcalibrationandapplication MATERIALS Block: CastAluminum Cylinder head: CastAluminum Intake manifold: CompositeExhaust manifold: CastNodularIron Main bearing caps: CastNodular Crankshaft: ForgedSteel Camshaft: BilletSteelConnecting rods: ForgedPowderMetal

751(29.6)

818(32.2)

640(25.2)

818(32.2)

Variable Displacement Pump: Advanced Oiling System