ATK Chevy LM7 5.3L 385 HP HP97 Aluminum Head Engine
ATK HP97 Chevy LM7 5.3L 385 HP Full Specs
| Brand | ATK High Performance Engines |
| Actual Engine Displacement | 5.3L/325 |
| Crate Engine Cylinder Head Material | Aluminum |
| Engine Block Material | Cast iron |
| Advertised Compression Ratio | 9.5:1 |
| Engine Balance | Internal |
| Cam Style | Hydraulic roller, OE roller |
| Rear Main Seal Style | 1-piece |
| Intake Manifold Included | No |
| Carburetor Included | No |
| Throttle Body Included | No |
| Distributor Included | No |
| Oil Pan Included | No |
| Valve Covers Included | No |
| Timing Cover Included | No |
| Water Pump Included | No |
| Harmonic Balancer Included | No |
| Flexplate Included | No |
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