ATK HP93 Chevy LQ4 6.0L Base Engine 460HP
ATK HP93 Chevy LQ4 6.0L Base Engine 460HP
• HP: 460
• TQ: 470
• Block: OE LQ4/6.0L Iron
• TQ: 470
• Block: OE LQ4/6.0L Iron
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Quick Overview:
Notes: This engine replaces the 2001-2007 Chevy 6.0L LQ4 engine. ECM MUST BE TUNED, not doing so can damage the engine. A PCV valve must be ran. You must also run an Air-Oil separator system such as the Moroso #85487 to capture the excess crankcase vapors LS engines are known for. If you are not running a MAP Sensor, the MAP timing option in the timing control box must be zeroed out all the way across. Failure to do so will allow the controller to add timing which can lead to detonation. You must also run some sort of a steam line kit that dumps to your water pump, radiator or radiator hose; we recommend a 4 corner setup like the Trick Flow #TFS-306SB601. This allows air pockets/hot spots to escape the heads and can also be used to purge out trapped air when filling the radiator for the first time.
Details
This engine was designed to be a performance upgrade for LS based vehicles or perfect for a 2001-2007 Chevy Truck LQ4 or LS swap in a hot rod. Expect big mid to upper end power, will have a noticeable idle. For optimal Performance you will need headers, chassis dyno tune and 36lb injectors.
Specs
Part Number
HP93
Block
• Block: OE LQ4/6.0L Iron
• Bore/Stroke: up to 4.040 x 3.622
• Displacement (cu.in): up to 371
• Bore/Stroke: up to 4.040 x 3.622
• Displacement (cu.in): up to 371
Short Block Features
• Crankshaft: OE GM 24 tooth reluctor wheel
• Rods: OE powder metal
• Pistons: Hypereutectic 9.51 compression
• Rings: Moly
• Camshaft: Hyd. Roller
• Cam Specs: Custom performance grind
• Timing Chain: OE single roller
• Rods: OE powder metal
• Pistons: Hypereutectic 9.51 compression
• Rings: Moly
• Camshaft: Hyd. Roller
• Cam Specs: Custom performance grind
• Timing Chain: OE single roller
Camshaft Advertised Duration
Custom
Camshaft Duration @ .050"
Custom
Camshaft Lift
Custom
Heads
• Cylinder Heads: OE aluminum 71cc/210cc 2.00/1.55
• Rocker Arms: OE 1.7 ratio
• Rocker Arms: OE 1.7 ratio
Additional Parts Included
• Oil Pump: Melling STD Volume
Recommended Components: NOT INCLUDED
• Flexplate/Flywheel: Stock internally balanced
• Balancer: Stock internally balanced/per application
• Intake Manifold: Stock EFI intake
• Water Pump: Per application
• Fuel Pump: Stock electric
• Fuel Injectors: 36lb injectors
• Spark Plugs: NGK #3186
• Spark Plug Wires: Factory
Recommended Components: NOT INCLUDED
• Flexplate/Flywheel: Stock internally balanced
• Balancer: Stock internally balanced/per application
• Intake Manifold: Stock EFI intake
• Water Pump: Per application
• Fuel Pump: Stock electric
• Fuel Injectors: 36lb injectors
• Spark Plugs: NGK #3186
• Spark Plug Wires: Factory
Horsepower
460
Torque
470
Warranty
Notes: This engine replaces the 2001-2007 Chevy 6.0L LQ4 engine. ECM MUST BE TUNED, not doing so can damage the engine. A PCV valve must be ran. You must also run an Air-Oil separator system such as the Moroso #85487 to capture the excess crankcase vapors LS engines are known for. If you are not running a MAP Sensor, the MAP timing option in the timing control box must be zeroed out all the way across. Failure to do so will allow the controller to add timing which can lead to detonation. You must also run some sort of a steam line kit that dumps to your water pump, radiator or radiator hose; we recommend a 4 corner setup like the Trick Flow #TFS-306SB601. This allows air pockets/hot spots to escape the heads and can also be used to purge out trapped air when filling the radiator for the first time.
Disclaimer: The parts listed are ATK’s recommendations of parts to be used to obtain our power figures listed. Power figures can vary based on parts used by the end user. It is the customer’s responsibility to verify components will work in their application. Some modifications to the vehicle may be required using these and or other aftermarket parts. . ATK reserves the right to substitute parts used in engines if necessary.
Disclaimer: The parts listed are ATK’s recommendations of parts to be used to obtain our power figures listed. Power figures can vary based on parts used by the end user. It is the customer’s responsibility to verify components will work in their application. Some modifications to the vehicle may be required using these and or other aftermarket parts. . ATK reserves the right to substitute parts used in engines if necessary.
PROPOSITION 65 WARNING:
Crude oil, gasoline, diesel fuel and other petroleum products can expose you to chemicals including toluene and benzene, which are known to the State of California to cause cancer and birth defects or other reproductive harm.
For more information go to www.p65warnings.ca.gov.
For more information go to www.p65warnings.ca.gov.
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