ATK Engines HP93 High Performance Crate Engine GM LS 6.0L / 460HP / 470TQ
059-HP93
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Base Engine
ATK Core Return Process
JEGS and ATK appreciate your business and want to ensure that your core return is as smooth as possible.
Please CLICK HERE for ATK Core Return Process
NOTE:
- Core return can be any Chevy LS 6.0L engine
Engine Specifications
This engine was designed to be a performance upgrade for LS based vehicles or perfect for a swap in a hot rod. For optimal performance, you will need headers, chassis dyno tune, and 36 lb. injectors.
- Horsepower: 460 hp
- Torque: 470 lb.-ft.
Block Information:
- OE LQ4/6.0L Iron
- Bore/Stroke: 4.040 in. x 3.622 in.
- Displacement: 6.0L
Rotating Assembly:
- Crankshaft: OE GM 24-tooth reluctor wheel
- Rods: OE powder metal
- Compression Ratio: 9.5:1
- Pistons: Hypereutectic
- Rings: Moly
Camshaft Specs:
- Camshaft: Hydraulic roller
- Cam Specs: Custom performance grind
- Timing Chain: OE single roller
Cylinder Head Information:
- Cylinder Heads: OE aluminum
- Combustion Chamber: 71 cc
- Intake Runner: 210 cc
- Valve Size: 2.000 in. Intake / 1.550 in. Exhaust
- Rocker Arms: OE roller rockers 1.7 ratio
Oil Pump Information:
- Oil Pump: Melling standard volume
Base Engine Includes:
- Short Block
- Camshaft
- Timing Set
- Cylinder Heads
- Oil Pump
Recommended Components
- Balancer: Stock internal balance/per application
- Exhaust: 1-5/8 in. Headers
- Firing Order: 18726543
- Flexplate/Flywheel: Stock internal balance
- Fuel Injectors: 36 l.b injectors
- Fuel Pump: Stock electric
- Fuel Octane: 91+
- Intake Manifold: Stock EFI intake
- Spark Plugs: NGK #739-3186
- Spark Plug Wires: Factory
- Oil Filter: Wix or K&N
- Oil Weight: 5W30
- Spark Plug Gap: .035 in.
- Stall Converter: 1800+
- Timing: Set to factory specifications via PCM module (Tune Required)
- Water Pump: Per application
Disclaimer: Power figures can vary based on parts used by the end-user. Some modifications to the vehicle may be required using these and or other aftermarket parts.
Engine Break-In Procedure
Use or break-in oil or conventional (non-synthetic) 10w30 oil with zinc additive for the first 500 miles of operation. Do not drive for long periods at any single speed, always vary your speed. Do not tow a trailer or put other heavy loads on the vehicle. It is best to avoid long periods of idling during this period. Check the engine oil and coolant levels daily.
Engines with flat tappet hydraulic cams only - Run the engine between 2,000 and 2,500 RPM's, with no-load on the engine for the first 30 minutes. Let the engine cool down completely and repeat the process 2-3 more times. Do not idle the engine for an extended period at this time, this is critical for breaking in the camshaft.
At 500 Miles change the engine oil and filter using conventional (non-synthetic) oil with a zinc additive. Check fuel and ignition settings, adjust valves (where applicable). Drive the next 500 miles normally, without high RPM's (below 5000 RPM), hard use, or extended periods of high loading or long periods of idling.
Change the oil and oil filter again at 1,000 miles. Continue using conventional (non-synthetic) oils and zinc additive, until about 4,000 miles. At that point, you may run a quality 10w30 synthetic oil if you choose. Use of oil with zinc or a zinc additive for the life of your engine is recommended.
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
Specifications:
Could this engine work with a W140AX 2.3L Whipple Supercharger that is for a stock bolt on supercharger application.
Will this fit in a 2003 hummer h2? Is it a direct swap ?
Can this engine be turbocharged?
I have a 2007 2500 HD 6.0 classic LT can I just swap it without the injector and header upgrades and just use everything stock pretty much just drop it in place of the old motor and hook up everything with stock parts?
How many quarts of oil?
I have a 2002 Silverado 1500 HD 4 x 4 with the 6.0 . Can i swap my current motor with this one and still use all of the other factory parts? I know i will need a tune, but is that all I need to update.
Will this work in a 05 hummer h2 sut
I have a 1972 Chevy silverado reg cab C20 will this motor fit
Motor Vehicles
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
Tools:
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
Electrical Cords
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.