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BluePrint Builder Series BLS4278TKX LS427 EFI Crate Engine & TKX Transmission Combo – 625 HP
The BluePrint Builder Series BLS4278TKX combines an LS427/625 HP Standard Edition EFI long block (Chevy LS, iron block, cast aluminum heads, rear sump oil pan) with a TKX manual transmission.
PERFORMANCE STARTS AT THE CORE
BUILT TO KEEP
EQUIPMENT RUNNING
The BluePrint Builder Series BLS4278TKX combines an LS427/625 HP Standard Edition EFI long block (Chevy LS, iron block, cast aluminum heads, rear sump oil pan) with a TKX manual transmission.
- Assembled: Yes
- Brand: BluePrint Engines
- Carburetor Included: No
- Computer Included: Yes
- Crate Engine Family: Chevy LS
Dependablepower →
COMPLETE PRODUCT INFORMATION
Full Product Description
The BluePrint Builder Series BLS4278TKX combines an LS427/625 HP Standard Edition EFI long block (Chevy LS, iron block, cast aluminum heads, rear sump oil pan) with a TKX manual transmission. Includes computer, heads, flywheel, balancer, intake, oil pan, plug wires, plugs, throttle body, timing cover, valve covers, water pump and harness; carburetor, distributor, flexplate, torque converter and transmission controller are not included.
Specifications
- Brand: BluePrint Engines
- Part / Model Number: BLS4278TKX
- Assembled: Yes
- Crate Engine Family: Chevy LS
- Cylinder Head Material: Cast aluminum
- Engine Assembly Style: Long block
- Notes: Oil pan has a rear sump.
- Part Type: Engine and Transmission Combos
Included: Computer, Cylinder Heads, Flywheel, Harmonic Balancer, Intake Manifold, Oil Pan, Spark Plug Wires, Spark Plugs, Throttle Body, Timing Cover, Valve Covers, Water Pump, Wiring Harness.
Technical Specifications
Product data| Product | BluePrint Builder Series BLS4278TKX LS427 EFI Crate Engine & TKX Transmission Combo – 625 HP |
|---|---|
| SKU | BLS4278TKX |
| Assembled | Yes |
| Brand | BluePrint Engines |
| Carburetor Included | No |
| Computer Included | Yes |
| Crate Engine Family | Chevy LS |
| Cylinder Head Material | Cast aluminum |
| Cylinder Heads Included | Yes |
| Distributor Included | No |
| Engine Assembly Style | Long block |
| Flexplate Included | No |
| Flywheel Included | Yes |
| Harmonic Balancer Included | Yes |
| Intake Manifold Included | Yes |
| Manufacturer's Part Number | BLS4278TKX |
| Notes | Oil pan has a rear sump. |
| Oil Pan Included | Yes |
| Part Type | Engine and Transmission Combos |
| Product Line | BluePrint Builder Series LS427/625HP Standard Edition EFI Crate Engine and TKX Transmission Combos |
| Quantity | Sold as a kit. |
| Spark Plug Wires Included | Yes |
| Spark Plugs Included | Yes |
| Throttle Body Included | Yes |
| Timing Cover Included | Yes |
| Torque Converter Included | No |
| Transmission Controller Included | No |
| UPC | 00887753986443 |
| Valve Covers Included | Yes |
| Water Pump Included | Yes |
| Wiring Harness Included | Yes |
Engineered forreal-world performanceBLS4278TKX
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 BluePrint Builder Series BLS4278TKX combines an LS427/625 HP Standard Edition EFI long block (Chevy LS, iron block, cast aluminum heads, rear sump oil pan) with a TKX manual transmission. Includes computer, heads, flywheel, balancer, intake, oil pan, plug wires, plugs, throttle body, timing cover, valve covers, water pump and harness; carburetor, distributor, flexplate, torque converter and transmission controller are not included.
Specifications
- Brand: BluePrint Engines
- Part / Model Number: BLS4278TKX
- Assembled: Yes
- Crate Engine Family: Chevy LS
- Cylinder Head Material: Cast aluminum
- Engine Assembly Style: Long block
- Notes: Oil pan has a rear sump.
- Part Type: Engine and Transmission Combos
Included: Computer, Cylinder Heads, Flywheel, Harmonic Balancer, Intake Manifold, Oil Pan, Spark Plug Wires, Spark Plugs, Throttle Body, Timing Cover, Valve Covers, Water Pump, Wiring Harness.
Specifications
Assembled: Yes
Brand: BluePrint Engines
Carburetor Included: No
Computer Included: Yes
Crate Engine Family: Chevy LS
Cylinder Head Material: Cast aluminum
Cylinder Heads Included: Yes
Distributor Included: No
Engine Assembly Style: Long block
Flexplate Included: No
Flywheel Included: Yes
Harmonic Balancer Included: Yes
Intake Manifold Included: Yes
Manufacturer's Part Number: BLS4278TKX
Notes: Oil pan has a rear sump.
Oil Pan Included: Yes
Part Type: Engine and Transmission Combos
Product Line: BluePrint Builder Series LS427/625HP Standard Edition EFI Crate Engine and TKX Transmission Combos
Quantity: Sold as a kit.
Spark Plug Wires Included: Yes
Spark Plugs Included: Yes
Throttle Body Included: Yes
Timing Cover Included: Yes
Torque Converter Included: No
Transmission Controller Included: No
UPC: 00887753986443
Valve Covers Included: Yes
Water Pump Included: Yes
Wiring Harness Included: Yes
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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BluePrint Builder Series BLS4278TKX LS427 EFI Crate Engine & TKX Transmission Combo – 625 HP$14,445.38

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