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ATK HP97 LM7 5.3L Long Block Crate Engine – 385 HP
The ATK HP97 is a remanufactured Chevy LM7 5.3L long block rated 385 HP, with 9.5:1 compression, aluminum heads, cast iron block, hydraulic roller cam and internal balance. Only the cylinder heads are included; other components are not included.
PERFORMANCE STARTS AT THE CORE
BUILT TO KEEP
EQUIPMENT RUNNING
The ATK HP97 is a remanufactured Chevy LM7 5.3L long block rated 385 HP, with 9.5:1 compression, aluminum heads, cast iron block, hydraulic roller cam and internal balance. Only the cylinder heads are included; other components are not included.
- Actual Engine Displacement: 5.3L/325
- Advertised Compression Ratio: 9.5:1
- Air Cleaner Included: No
- Assembled: Yes
- Brand: ATK High Performance Engines
Dependablepower →
COMPLETE PRODUCT INFORMATION
Full Product Description
The ATK HP97 is a remanufactured Chevy LM7 5.3L long block rated 385 HP, with 9.5:1 compression, aluminum heads, cast iron block, hydraulic roller cam and internal balance. Only the cylinder heads are included; other components are not included.
Specifications
- Brand: ATK High Performance Engines
- Part / Model Number: HP97
- Actual Engine Displacement: 5.3L/325
- Advertised Compression Ratio: 9.5:1
- Assembled: Yes
- Cam Style: Hydraulic roller
- Crate Engine Cylinder Head Material: Aluminum
- Crate Engine Family: Chevy LS
- Engine Balance: Internal
- Engine Block Material: Cast iron
- Part Type: Crate Engines
- Product Line: ATK High Performance Chevy LM7 5.3L 385 HP Long BLock Crate Engines
- Rear Main Seal Style: 1-piece
- Remanufactured: Yes
Included: Cylinder Heads.
Technical Specifications
Product data| Product | ATK HP97 LM7 5.3L Long Block Crate Engine – 385 HP |
|---|---|
| SKU | HP97 |
| Actual Engine Displacement | 5.3L/325 |
| Advertised Compression Ratio | 9.5:1 |
| Air Cleaner Included | No |
| Assembled | Yes |
| Brand | ATK High Performance Engines |
| Cam Style | Hydraulic roller, OE roller |
| Carburetor Included | No |
| Computer Included | No |
| Crate Engine Cylinder Head Material | Aluminum |
| Crate Engine Family | Chevy LS |
| Cylinder Heads Included | Yes |
| Distributor Included | No |
| Engine Balance | Internal |
| Engine Block Material | Cast iron |
| Flexplate Included | No |
| Flywheel Included | No |
| Harmonic Balancer Included | No |
| Intake Manifold Included | No |
| Manufacturer's Part Number | HP97 |
| Notes | Custom chassis dyno tune required. Headers and upgraded injectors recommended for optimal performance. 24 tooth reluctor wheel. |
| Oil Pan Included | No |
| Part Type | Crate Engines |
| Product Line | ATK High Performance Chevy LM7 5.3L 385 HP Long BLock Crate Engines |
| Quantity | Sold individually. |
| Rear Main Seal Style | 1-piece |
| Remanufactured | Yes |
| Spark Plug Wires Included | No |
| Spark Plugs Included | No |
| Supercharger Included | No |
| Throttle Body Included | No |
| Timing Cover Included | No |
| UPC | 00653517137211 |
| Valve Covers Included | No |
| Water Pump Included | No |
| Wiring Harness Included | No |
Engineered forreal-world performanceHP97
DELIVERY & AFTER-SALES INFORMATION
Shipping & Returns
Important information for this product before and after purchase.Heavy or oversized equipment delivery is coordinated according to the product and destination address.
Timing and applicable delivery arrangements are confirmed during checkout or by Kayros Tool support.
Contact Kayros Tool before returning an item so eligibility, product condition, and return instructions can be confirmed.
Overview
The ATK HP97 is a remanufactured Chevy LM7 5.3L long block rated 385 HP, with 9.5:1 compression, aluminum heads, cast iron block, hydraulic roller cam and internal balance. Only the cylinder heads are included; other components are not included.
Specifications
- Brand: ATK High Performance Engines
- Part / Model Number: HP97
- Actual Engine Displacement: 5.3L/325
- Advertised Compression Ratio: 9.5:1
- Assembled: Yes
- Cam Style: Hydraulic roller
- Crate Engine Cylinder Head Material: Aluminum
- Crate Engine Family: Chevy LS
- Engine Balance: Internal
- Engine Block Material: Cast iron
- Part Type: Crate Engines
- Product Line: ATK High Performance Chevy LM7 5.3L 385 HP Long BLock Crate Engines
- Rear Main Seal Style: 1-piece
- Remanufactured: Yes
Included: Cylinder Heads.
Specifications
Actual Engine Displacement: 5.3L/325
Advertised Compression Ratio: 9.5:1
Air Cleaner Included: No
Assembled: Yes
Brand: ATK High Performance Engines
Cam Style: Hydraulic roller, OE roller
Carburetor Included: No
Computer Included: No
Crate Engine Cylinder Head Material: Aluminum
Crate Engine Family: Chevy LS
Cylinder Heads Included: Yes
Distributor Included: No
Engine Balance: Internal
Engine Block Material: Cast iron
Flexplate Included: No
Flywheel Included: No
Harmonic Balancer Included: No
Intake Manifold Included: No
Manufacturer's Part Number: HP97
Notes: Custom chassis dyno tune required. Headers and upgraded injectors recommended for optimal performance. 24 tooth reluctor wheel.
Oil Pan Included: No
Part Type: Crate Engines
Product Line: ATK High Performance Chevy LM7 5.3L 385 HP Long BLock Crate Engines
Quantity: Sold individually.
Rear Main Seal Style: 1-piece
Remanufactured: Yes
Spark Plug Wires Included: No
Spark Plugs Included: No
Supercharger Included: No
Throttle Body Included: No
Timing Cover Included: No
UPC: 00653517137211
Valve Covers Included: No
Water Pump Included: No
Wiring Harness Included: No
Shipping & Returns
NST Cargo coordination: Heavy or oversized equipment delivery is coordinated according to the product and destination address.
Delivery estimate: Timing and applicable arrangements are confirmed during checkout or by Kayros Tool support.
Returns: Contact Kayros Tool before returning an item so eligibility, condition, and instructions can be confirmed.
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ATK HP97 LM7 5.3L Long Block Crate Engine – 385 HP$2,479.38

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