Description
ATK HP89CPOL Chevy 350 Complete Engine 390HP
ATK High Performance GM 350 390 HP Stage 3 Long Block Crate Engines
Awesome performance and awesome looks collide with ATK High Performance GM 350 390 hp Stage 3 long block crate engines. They are topped with trick looking parts and have the power to back them up. Each engine is hand-assembled and balanced to help them put out 390 hp and 420 ft.-lbs. of torque that will tear up the street or strip. Whether you are looking to pack some more power in your street rod, muscle car, or truck, ATK has you covered!
Handpicked, remanufactured block
ATK High Performance aluminum cylinder heads with 2.020 in. /1.600 ex. valves
- Intake manifold
- Carburetion
- OE crankshaft and connecting rods
- Hypereutectic pistons
- Hydraulic roller camshaft
- Cam lift- .528 int./.536 exh.
- Cam duration at 0.50- 220 int./224 exh.
- 10.0:1 compression
- Distributor, plug wires, and plugs
- Valve covers
- Timing cover and timing set
- Oil pan, pump, and pickup tube
- Water pump
- Front damper and flexplate
| KEY SPECS | |
|---|---|
| MFG. Part # | HP89CPOL |
| Brand | ATK Engines |
| Engine Displacement | 5.7 liters |
| Horsepower | 390 horsepower |
| Compression Ratio | 10.0:1 |
| Torque | 417 ft./lbs. |
| Camshaft Type | Hydraulic Roller |
| Cylinder Head Material | Aluminum |
| Piston Material | Hypereutectic Aluminum |
| Camshaft Duration (.050 in) | 220° intake / 224 ° exhaust |
| Camshaft Lift (in) | .528 intake / .536 exhaust |
| Bore x Stroke (in) | 4.040″ x 3.480″ |
| Carburetor Included | Yes |
| Intake Manifold Included | Yes |
| Distributor Included | Yes |
| Valve Covers Included | Yes |
| Engine Balance | Internal/External |
| Cylinder Heads Included | Yes |
| Rear Main Seal Style | 1-piece |
| Throttle Body Included | No |
| Oil Pan Included | Yes |
| Timing Cover Included | Yes |
| Water Pump Included | Yes |
| Harmonic Balancer Included | Yes |
| Flexplate Included | No |
| Flywheel Included | No |
| Air Cleaner Included | Yes |
| Spark Plugs Included | Yes |
| Spark Plug Wires Included | Yes |
| Computer Included | No |
| Wiring Harness Included | No |
| Recommended Fuel | 91-93 Octane |
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