ATK Engines High Performance Complete EFI Crate Engine GM LS 6.0L / 460HP / 470TQ
059-HP93C-EFI
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Complete 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.
- Balance: Internally
- Displacement: 6.0L
Rotating Assembly:
- Crankshaft: OE GM 24-tooth reluctor wheel
- Rods: OE powder metal 6.093 in. with stock bolts
- Compression Ratio: 9.5:1
- Pistons: Hypereutectic dish
- 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
EFI Information
- FiTech Ultimate LS EFI induction system
- Intake Manifold Fabricated from Aluminum Sheet Metal
- 92 mm Throttle Body
- Billet Fuel Rails with Crossover -6 AN
- 36 lb. Fuel Injectors
- ECM and Harness with Self-Learn Tuning
- Handheld Controller with Touch Screen
- Fan Control Outputs for 2 Fans
Engine Includes:
- Short Block
- Camshaft
- Timing Set
- Cylinder Heads
- Intake Manifold
- EFI ECM and Harness
- Oil Pump
- Oil Pan
- NGK Spark Plugs
- Spark Plug Wires
- Ignition Coils
Recommended Components
- Balancer: Stock internal balance/per application
- Exhaust: 1 5/8 in. Headers
- Firing Order: 18726543
- Flexplate/Flywheel: Stock internal balance
- Fuel Pump: High-pressure EFI
- Fuel Octane: 91+
- Intake Manifold: Stock EFI intake
- Oil Weight: 5W30
- Spark Plug Gap: .035 in.
- Stall Converter: 1800+
- 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.
Specifications:
What are the cam spect.
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.