ATK HP110C-RETROEFI Chevy LQ4 6.0L With LS3 Heads Base Engine 500HP

Engine Specifications: • HP: 500 • TQ: 485 • Block: OE LQ4/LQ9 6.0L Iron • Bore/Stroke: 4.030 x 3.622 • Displacement (cu.in): 371ci • Crankshaft: OE GM 24 tooth reluctor wheel • Rods: OE powder metal • Pistons: Hypereutectic 10.1 compression • Rings: Moly • Camshaft: Hyd. Roller • Cam Specs: Custom performance grind • Timing Chain: OE single roller • Cylinder Heads: ATK LS3 rectangle port aluminum 69cc/255cc 2.160”in/1.600”ex • Rocker Arms: OE 1.7 ratio with trunnion upgrade • Oil Pump: Melling M295 • Oil Pan: LS Swap pan 6qt (with filter) Fits most GM RWD applications originally equipped with BBC/SBC rear sumps • Valve Covers: Custom Retro SBC script valve covers with valve cover conversion kit for SBC covers • Valley Cover: Retro cover with oil fill tube • Air Cleaner: Retro air cleaner assembly • Flexplate/Flywheel: Stock internally balanced (not included) • Drive System: Holley mid mount kit with balancer, AC, water pump, alternator & power steering • Engine Management System: Holley terminator with trans control • Intake Manifold: Holley mid rise cathedral port • Throttle Body: Holley 1000cfm • Fuel Rails: Holley aluminum, black • Fuel Injectors: Holley 36lbs • Ignition Coils: MSD • Water Pump: Holley drive kit • Spark Plugs: Autolite #104 • Spark Plug Wires: MSD 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: 2500+ Notes: This engine comes as shown in the picture complete with Holley terminator engine management system (not shown). Customer will have to setup/final tune. 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 other aftermarket parts. ATK reserves the right to substitute parts used in engines if necessary.