ATK High Performance HP73 Chrysler 360 Magnum 320 HP Stage 1 Long Block Crate Engines
Revitalize your Mopar with the ATK High Performance HP73 Chrysler 360 Mag 320 HP Stage 1 Long Block. This engine is expertly blueprinted and assembled to deliver a healthy 320 horsepower increase over the stock 360 Magnum engine while retaining excellent street manners. ATK High Performance uses quality parts to ensure the longevity and reliability expected from a performance build. The HP73 Chrysler is the perfect entry point for those seeking reliable, enhanced power from the classic Chrysler 360 Mag platform without compromising daily drivability.
| Brand | ATK High Performance Engines |
| Part Type | Crate Engines |
| Product Line | ATK High Performance Chrysler 360 Magnum 320 HP Stage 1 Long Block Crate Engines |
| 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 |
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