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LLT (3.6L SIDI DOHC V6)

LLT Specifications

Discuss the Direct Injection version of the LY7 3.6L DOHC V6 fitted to GM vehicles from 2008 and onwards

Postby ZerOne » Fri Nov 26, 2010 7:14 am

2010 GM 3.6L V-6 VVT DI ( LLT ) 06/05/2009

Type: 3.6L V-6
Displacement: 3564cc ( 217 ci )
Engine Orientation: L= Longitudinal T=Transverse L

Compression ratio: 11.3:1
Valve configuration: Dual overhead camshafts
Valves per cylinder: 4

Assembly site/s:
St. Catharines, Ontario
Flint Engine South, Flint Mi.
Ramos Arizpe, Mexico
Melbourne, Australia

Valve lifters: Roller follower with hydraulic lash adjusters
Firing order: 1-2-3-4-5-6
Bore x stroke: 94 x 85.6 mm
Bore Center ( mm ) 103
Bore Area ( cm2 ) ( total engine bore area ) 416.39
Fuel system: DI
Fuel Type: Regular Unleaded

Applications: Horsepower: hp ( kw )
Buick Enclave ( with dual exhaust ) 288 hp ( 215 kW ) @ 6300 rpm SAE CERTIFIED
Buick LaCrosse / Allure 280 hp ( 209 kW ) @ 6300 rpm SAE CERTIFIED
Cadillac CTS Sedan 304 hp ( 227 kW ) @ 6400 rpm SAE CERTIFIED
Cadillac CTS Wagon 304 hp ( 227 kW ) @ 6400 rpm SAE CERTIFIED
Cadillac STS 302 hp ( 225 kW ) @ 6300 rpm SAE CERTIFIED
Chevrolet Camaro ( LT and LS ) 304 hp ( 227 kW ) @ 6400 rpm SAE CERTIFIED
Chevrolet Traverse ( with dual exhaust ) 288 hp ( 215 kW ) @ 6300 rpm SAE CERTIFIED
Chevrolet Traverse ( with single exhaust ) 281 hp ( 210 kW ) @ 6300 rpm SAE CERTIFIED
GMC Acadia ( with dual exhaust ) 288 hp ( 215 kW ) @ 6300 rpm SAE CERTIFIED
Pontiac G8 285 hp ( 213 kW ) @ 6300 rpm PRELIMINARY / ESTIMATE
Applications: Torque: lb-ft. ( Nm )
Buick Enclave ( with dual exhaust ) 270 lb-ft ( 366 Nm ) @ 3400 rpm SAE CERTIFIED
Buick LaCrosse / Allure 259 lb-ft ( 351 Nm ) @ 4800 rpm SAE CERTIFIED
Cadillac CTS Sedan 273 lb-ft ( 370 Nm ) @ 5200 rpm SAE CERTIFIED
Cadillac CTS Wagon 273 lb-ft ( 370 Nm ) @ 5200 rpm SAE CERTIFIED
Cadillac STS 272 lb-ft ( 369 Nm ) @ 5200 rpm SAE CERTIFIED
Chevrolet Camaro ( LT and LS ) 273 lb-ft ( 370 Nm ) @ 5200 rpm SAE CERTIFIED
Chevrolet Traverse ( with dual exhaust ) 270 lb-ft ( 366 Nm ) @ 3400 rpm SAE CERTIFIED
Chevrolet Traverse ( with single exhaust ) 266 lb-ft ( 361 Nm ) @ 3400 rpm SAE CERTIFIED
GMC Acadia ( with dual exhaust ) 270 lb-ft ( 366 Nm ) @ 3400 rpm SAE CERTIFIED
Pontiac G8 275 lb-ft ( 373 Nm ) @ 5200 rpm PRELIMINARY / ESTIMATE
Maximum Engine Speed: 6700 rpm
Engine Mass (kg/lbs) engine plant as shipped weight 172 / 380 (estimate) automatic CTS and STS
194 / 428 (estimate) manual CTS and STS
164 / 361 (estimate) Acadia, Enclave, Traverse
Emissions controls:
Evaporative system
Dual catalytic converters
Positive crankcase ventilation

MATERIALS
Block: Sand cast aluminum (319) with cast in iron bore liners
Cylinder head: Cast aluminum ( 319 semi permanent mold )
Intake manifold: Aluminum ( 319 Upper, and Lower )
Exhaust manifold: High-silicon moly cast iron
Main bearing caps: Sintered steel ( CU infiltrated )
Crankshaft: Forged steel ( 1038 V )
Camshaft: Cast nodular iron
Connecting rods: Sinter forged steel

Additional features:
Four-cam continuously variable cam phasing
Internal exhaust gas recirculation ( EGR )
Pressure-actuated piston cooling jets
Torque-based engine management system
Secondary throat cut inlet ports
Direct injection fuel system
High-pressure, engine-driven fuel pump with stainless steel fuel rails
Internal front cover damper plates
Cartridge style oil filter
Extended life spark plugs
Extended life coolant
Extended life accessory drive belts
7.7mm IT chain system for all HFV6 applications
Coil-on-plug ignition
Structural cast-aluminum oil pan with steel baffles
5W30 GF4 Mineral Oil
Synthetic Oil for Cadillac applications
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ZerOne
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