ATK GM 350 390 HP HP89M Stage 2 Mid-Dress Performance
ATK High Performance HP89M GM 350 390 HP Stage 2 Mid-Dress Specs
| Brand | ATK High Performance Engines |
| UPC | 00653517266911 |
| Engine Family | Chevy Small Block |
| Displacement | 5.7L / 350 CI |
| Compression Ratio | 10.0:1 |
| Intake Included | Yes (Carbureted) |
| Distributor Included | Yes |
| Harmonic Balancer | Yes |
| Warranty | 1 Year |
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