ATK Engines High Performance Crate Engine GM LS 6.0L / 460HP / 470TQ

ATK Engines High Performance Crate Engine GM LS 6.0L / 460HP / 470TQ

Part Number: 059-HP93

Base Engine

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.

Specifications:

Engine Block Material                 –            Cast iron

Cylinder Head Material                 –  Aluminum

Engine Make/Size                      –  GM LS

Quantity                                 –  Sold individually

Engine Displacement             –  6.0L

Manufacturer’s Part Number:          –  HP93

Shipping Weight:                   –  430

Package Height:                –      32

Package Depth:               –      25

Package Width:              –  31.5

Part Category:              –      Performance Parts

Part Fitment:                –  Semi Universal

High-Performance Replacement Engine for LS-Based Vehicles

In 2007, ATK launched a High-Performance Division with one of the finest engine shops in the country. By reverse-engineering all of their engines, they are able to eliminate any OEM deficiencies. This makes an ATK-built crate engine have a superior design over the original engine by incorporating better components when needed. These quality-built engines are offered in three different stages for ease of finishing an engine swap. ATK HP engines feature a 24 month/unlimited mile warranty.