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just wondeirng what caddy did to get 20 more hp out of the engine that they didnt at gmc for the denali.... can u chip the denali and get the power back.....do u think there is any differnce in performance with the 20hp
 

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2012 Escalade, 2014 SRX
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83eldo said:
just wondeirng what caddy did to get 20 more hp out of the engine that they didnt at gmc for the denali.... can u chip the denali and get the power back.....do u think there is any differnce in performance with the 20hp
I hear it is the compression, exhaust and programming that is the difference. There is always room to program your computer to your trucks mods
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Vortec 6000 6.0L V-8 (LQ4) What's New or Changed View Photo Top of Page

Type: 6.0L V-8
Displacement: 5967cc (364 ci)
Compression ratio: 9.4:1
Valve configuration: overhead valves (2 valves per cylinder)
Assembly site: Romulus, Mich.
Silao, Mexico
Valve lifters: hydraulic roller
Firing order: 1 - 8 - 7 - 2 - 6 - 5 - 4 - 3
Bore x stroke: 101.6 x 92 mm
Fuel system: sequential fuel injection
Horsepower: 325 hp (243 kw) @ 5000 rpm (GMC Sierra Denali)
315 hp (235 kw) @ 5000 rpm (HUMMER H2)
300 hp (224 kw) @ 4400 rpm (2500 HD and 3500 GMC Sierra and Chevrolet Silverado equal to or greater than 8600 pounds GVW)
Torque: 365 lb-ft (495 Nm) @ 4000 rpm (GMC Yukon Denali/Yukon XL Denali)
360 lb-ft (488 Nm) @ 4000 rpm (HUMMER H2)
360 lb-ft (488 Nm) @ 4000 rpm (2500 HD and 3500 GMC Sierra and Chevrolet Silverado equal to or greater than 8600 pounds GVW)
Fuel shut off: 5600 rpm
6000 rpm (with M32 transmission)
Emissions controls: evaporative system
catalytic converter
positive crankcase ventilation
Applications: GMC Sierra Denali (formerly Sierra C3)
GMC Yukon Denali
GMC Yukon XL Denali and Chevrolet Suburban
GMC Yukon XL 3500 Sierra and Chevrolet Silverado Pickup and Chassis Cab 2500 HD and 3500 GMC Sierra and Chevrolet Silverado
HUMMER H2
Chevrolet Express and GMC Savana

MATERIALS
Block: cast iron
Cylinder head: cast aluminum
Intake manifold: composite
Exhaust manifold: high silicon molybdenum
cast nodular iron
Main bearing caps: powder metal
Crankshaft: cast iron with undercut and rolled fillets
Camshaft: steel
Connecting rods: forged powder metal
Additional features: extended life spark plugs
extended life coolant
oil level sensor
Oil Life System
electronic throttle control (all applications except Chevy Express and GMC Savana)
electronic throttle control on H2, including specific off road (low range) throttle progression calibration
compressed natural gas option
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Vortec H.O. 6000 6.0L V-8 (LQ9) What's New or Changed View Photo Top of Page

Type: 6.0L V-8
Displacement: 5967cc (364 ci)
Compression ratio: 10.0:1
Valve configuration: overhead valve (2 valves per cylinder)
Assembly site: Romulus, Mich.
Valve lifters: hydraulic roller
Firing order: 1 - 8 - 7 - 2 - 6 - 5 - 4 - 3
Bore x stroke: 101.6 x 92mm
Fuel system: sequential fuel injection
Horsepower: 345 hp (257 kw) @ 5200 rpm
Torque: 380 lb-ft (515 Nm) @ 4000 rpm
Fuel shut off: 6000 rpm
Emissions controls: evaporative system
catalytic converter
positive crankcase ventilation
Applications: Cadillac Escalade and Escalade EXT
Chevrolet Silverado SS (added 9/2/03)

MATERIALS
Block: cast iron
Cylinder head: cast aluminum
Intake manifold: composite
Exhaust manifold: high silicon molybdenum
cast nodular iron
Main bearing caps: powder metal
Crankshaft: cast iron with undercut and rolled fillets
Camshaft: steel
Connecting rods: forged powder metal
Additional features: platinum tip spark plugs
extended life coolant
oil level sensor
Oil Life System
electronic throttle control
 

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I have a 2002 Escalade LQ9 6.0 HO in my 1999 Z28.. The difference between the LQ4 and the LQ9 engine is the pistons.. The escalade has flat top pistons which increase the CR. The LQ4 or regular 6.0 has dished pistons creating more volume and less CR...
 
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