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.
This engine is a direct replacement for the 2001–2007 Chevy 6.0L LQ4 engine. Important Installation Notes:
Following these guidelines will help ensure reliable performance and longevity for your engine.
One-time guaranteed replacement, regardless of the cause of failure.
One-time guaranteed replacement, regardless of the cause of failure.
Engine Specifications:
• HP: 505
• TQ: 480
• Block: OE LQ4/6.0L Iron
• Bore/Stroke: up to 4.040” x 3.622”
• Displacement (cu.in): up to 371
• Crankshaft: OE GM 24 tooth reluctor wheel
• Rods: OE powder metal or Stock GM
• Pistons: Hypereutectic 10:1 compression
• Rings: Moly
• Camshaft: Hyd. Roller
• Cam Specs: Custom performance grind
• Timing Chain: OE single roller
• Cylinder Heads: OE cathedral port aluminum 71cc/210cc 2.00/1.55
• Rocker Arms: 1.7 Ratio
• Oil Pump: Melling STD Volume
Recommended Components:
• Flexplate/Flywheel: Stock internally balanced
• Balancer: Stock internally balanced/per application
• Intake Manifold: Stock EFI intake or Aftermarket
• Water Pump: Per application
• Fuel Pump: Stock electric
• Fuel Injectors: 36lb injectors
• Spark Plugs: NGK #3186
• Spark Plug Wires: Factory
Engine Info:
• Oil: Conventional / Non Synthetic 10W30
• Oil Filter: Wix or K&N
• Timing: Set to factory specifications via PCM module (ECM TUNING REQUIRED).
• Spark Plug Gap: .040”
• Firing Order: 18726543
• Octane: 91+
• Stall Converter: 1800+
• Exhaust: 1 5/8 + Headers (Per application – Larger diameter will make more power)