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Inside The New 360HP Duramax

Assembly Site: Moraine, Ohio
Applications: Chevy Silverado and GMC Sierra 2500HD, 3500 pickups; Hummer H1, Chevy Express, and GMC Savana fullsize vans; Chevy Kodiak and GMC TopKick medium-duty trucks
Type: 90-degree, V-8 charge-cooled turbodiesel
Displacement (cu in/cc): 403/6,599
Bore x Stroke (in/mm): 4.06 x 3.9/103 x 99
Block Material: Cast iron with induction-hardened cylinder liners
Cylinder Head Material: Cast aluminum
Intake Manifold: Cast aluminum
Exhaust Manifolds: Cast-nodular iron with steel pipe extension
Compression Ratio: 16.8:1
Valve Configuration: Overhead valve, four valves per cylinder
Valve Lifters: Mechanical roller
Firing Order: 1-2-7-8-4-5-6-3
Fuel System: Direct-injection diesel with high-pressure common rail
Horsepower (hp @ rpm):
360 @ 3,200: 2500 HD and 3500 Chevrolet Silverado and GMC Sierra (LBZ), automatic transmission only. Available beginning 4th quarter 2005.
310 @ 3,000: 2500 HD and 3500 Chevrolet Silverado and GMC Sierra (LLY), automatic transmission only. Available through 3rd quarter 2005.
300 @ 3,000: 2500 HD and 3500 Chevrolet Silverado and GMC Sierra (LLY), manual transmission. Chevrolet Kodiak and GMC TopKick (LLY) and Hummer H1 Alpha (LLY).
250 @ 3,200: Chevrolet Express and GMC Savana (LLY).
Torque (lb-ft @ rpm):
650 @ 1,600: 2500 HD and 3500 Chevrolet Silverado and GMC Sierra (LBZ), automatic transmission only. Available beginning 4th quarter 2005.
605 @ 1,600: 2500 HD and 3500 Chevrolet Silverado and GMC Sierra (LLY), automatic transmission only. Available through 3rd quarter 2005, Chevrolet Kodiak and GMC TopKick (LLY).
520 @ 1,600: 2500 HD and 3500 Chevrolet Silverado and GMC Sierra (LLY), manual transmission. Chevrolet Kodiak and GMC TopKick, manual transmission (LLY) and Hummer H1 Alpha (LLY).
460 @ 3,200: Chevrolet Express and GMC Savana (LLY)
Fuel Shut Off (rpm):
3,250: Silverado and Sierra (Heavy Duty), Kodiak and TopKick (Medium Duty) and Hummer H1 Alpha. (LLY)
3,450: Express and Savana (LLY), Silverado and Sierra HD and 3500 (LBZ)
Crankshaft: Forged steel
Connecting Rods: Forged steel, stress-fractured
Additional Features: Turbocharger with charge cooling; exhaust braking (medium duty only); heated air intake; GM Oil Life System

Type: Six-speed rear-wheel drive, electronically controlled, automatic overdrive transmission with torque-converter clutch
Engine Range: 6.6L-8.1L
Maximum Engine Torque (lb-ft): 650
Maximum Gearbox Torque (lb-ft): 900
Gear Ratios: First: 3.10:1; Second: 1.81:1; Third: 1.41:1; Fourth: 1.00:1; Fifth: 0.71:1; Sixth: 0.61:1; Reverse: 4.49:1
Max. Shift Speed (rpm): 4,850
Max. Gross Vehicle Weight (GVW, lb):
3600 series: 12,000
3500 dualie series: 11,400
3500 non-dualie series: 9,900
2500 HD series: 9,200
Max. Gross Curb Weight (GCW, lb):
3500 dualie, 3600 series (6.6L Duramax): 23,500
3500 dualie (8.1L), 3600 (8.1L), 3500 non-dualie (6.6L Duramax, 8.1L): 22,000
Six-position Quadrant: P, R, N, D, M, 1
Case Material: Die-cast aluminum
Shift Pattern: (2) Two-way on/off solenoids
Shift Quality: Force motor control/adaptive shifts
Torque Converter Clutch: Variable Bleed Solenoid Control
Converter Size: 310 mm (diameter of torque converter turbine)
Fluid Type: DEXRON VI
Transmission Weight (dry): 150 kg (330 lb)
Fluid Capacity (approx, dry): Shallow pan: 12L (13 qt)
Power Take Off: Provision available
Pressure Taps Available: Main pressure
Assembly Sites: Baltimore, Maryland
Additional Features: Tap-shift range selection mode; elevated idle mode; low traction mode; shift stabilization; tow/haul; grade braking
Applications: '06 Chevrolet Silverado and GMC Sierra 2500HD and 3500


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