Overview Brand: ATK High Performance Engines Manufacturer’s Part Number: HP73 Part Type: Crate Engines Product Line: ATK High Performance Chrysler 360 Magnum 320 HP Stage 1 Long Block Crate Engines Summit Racing Part Number: HPE-HP73 UPC: 00653517546983 Crate Engine Family: Mopar Small Block Magnum Actual Engine Displacement: 5.9L/360 Crate Engine Cylinder Head Material: Cast iron Engine Block Material: Cast iron Advertised Compression Ratio: 9.0:1 Assembled: Yes Engine Balance: External Cam Style: Hydraulic roller, OE roller Rear Main Seal Style: 1-piece Intake Manifold Included: No Cylinder Heads Included: Yes Carburetor Included: No Throttle Body Included: No Distributor Included: No Oil Pan Included: Yes Valve Covers Included: Yes Timing Cover Included: Yes Water Pump Included: No Harmonic Balancer Included: No Flexplate Included: No Flywheel Included: No Air Cleaner Included: No Spark Plugs Included: No Spark Plug Wires Included: No Computer Included: No Wiring Harness Included: No Supercharger Included: No Remanufactured: Yes Quantity: Sold individually. ATK High Performance Chrysler 360 Magnum 320 HP Stage 1 Long Block Crate Engines ATK High Performance Chrysler 360 Magnum 320 hp Stage 1 long block crate engines are perfect for a street cruiser offering great street ability, stock idle, and good power. ATK Stage 1 or base engines are designed for those that may have their own component parts already, and who also are interested in completing out the build themselves. Typically ATK Chrysler 360 Magnum 320 hp base engines consist of: * Seasoned OE Magnum block * OE cast crankshaft * OE steel connecting rods * Hypereutectic pistons * Chromoly piston rings * Hydraulic roller camshaft * Magnum cylinder heads * Steel rocker arms * Timing set and cover * Oil pan, oil pump and pick-up tube * Valve covers