Blueprint Engines
30 BluePrint Engines Break-In Oil BPP710 Engine Oil, Break-In, Mineral, 30W, ZDDP Enhanced, Quart, Each
mllBPP710
A$90.24
BluePrint Builder Series LS427/625HP Standard Edition EFI Crate Engine and 4L65/70E Trans Combos BLS4278KB4L7 427 c.i. LS Iron Block Edition, Fuel Injected, Automatic Transmission w/ Black Pulley Kit
BluePrint Builder Series LS427/625HP Standard Edition EFI Crate Engine and 4L65/70E Trans Combos BLS4278KB4L7 427 c.i. LS Iron Block Edition, Fuel Injected, Automatic Transmission w/ Black Pulley Kit
A$57,648.21
Special Order. Contact for ETA.
This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
We accept
Description
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 21:18:08
Features
Vehicle Compatibility and Return Conditions.
This item was designed and engineered in the USA for US domestic vehicles. OBD tools, ECUs, dongles, programmers, and tuners may have limited compatibility with vehicles outside the USA due to regional differences in emission standards and system configurations. Some features and functionality may vary depending on the vehicle and location.
Some electronic tuning devices and programmers require activation, registration, or pairing with a specific vehicle’s VIN (Vehicle Identification Number). Once activated or paired, these devices may become permanently associated with that vehicle, restricting or preventing their use on another vehicle, resticting our ability to offer returns or exchanges.
Please review the product details and images to ensure it meets your needs. For clarification or assistance, feel free to contact a StreetFX agent. Note: Returns are not accepted for special order or tuning products unless the unit is deemed faulty.
Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.
Specifications
Reference Information
| Reference Data (Provide these details to our support team) | |
|---|---|
| Brand Name/s | Blueprint Engines |
| StreetFX SKU | mllBLS4278KB4L7 |
| SFX Item ID | 5183081 |
| Accounting SKU | mll-BLS4278KB4L7 |
| Manufacturer SKU | BLS4278KB4L7 |
| Manufacturer UPC | 00887753986436 |
| Alternative References | BLS4278KB4L7, MLL-BLS4278KB4L7 |
Engine 427 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, 4L65/70E Automatic Transmission w/ Black Pulley Kit
BluePrint Builder Series LS427/625HP Standard Edition EFI crate engine and 4L65/70E transmission combos take the guesswork out of matching up an engine and transmission for your ride. Featuring a fuel injected Chevy LS small block-compatible 427 (c.i.d.) engine that produces 625 horsepower, this standard edition builder series includes a polished pulley kit and 4L65/70E automatic transmission. The aluminum BluePrint Engines cylinder heads help produce a nice 11.0:1 compression ratio, with assistance from the hydraulic roller camshaft, forged pistons, and forged crankshaft. Altogether, this assembly produces 565 lbs.-ft. of torque. When you need or want a new LS powertrain for your ride, go with the authority in crate engines and their BluePrint Builder Series LS427/625HP Standard Edition EFI crate engine and 4L65/70E transmission combos.
Other product features, items, and specifications include:
Block:
• OEM style (4.060 in. bored to 4.069 in.)
• Main caps are 6-bolt
• One-piece rear main seal
Rotating Assembly:
• New forged crankshaft
• Stroke – 4.125 in.
• Forged connecting rods (6.125 in.)
• Forged pistons
• Internally balanced
• Non-weighted harmonic balancer
Cylinder Heads:
• BluePrint PS8015 models
• Chamber – 72cc
• Valves are 2.165 in. intake and 1.600 in. exhaust
• Exhaust runners are 259cc intake and 102cc exhaust
Camshaft:
• Hydraulic roller
• Intake valve lift – 0.624 in.
• Exhaust valve lift – 0.624 in.
• Intake duration at 0.050 in. of lift – 239
• Exhaust duration at 0.050 in. of lift - 255
• Lobe separation angle (LSA) – 114 degrees
Ignition Timing
• ECM supplied with calibration (initial and total timing are controlled by PCM)
• Firing order is 1-8-7-2-6-5-4-3
Assembled 4-speed Transmission Package:
• Complete 4L65/70E package with electronic transmission controller
• Torque converter with 2,200–2,400 rpm stall
• Non-weighted flexplate
• Starter
Other Components:
• All required (to make engine run) sensors and wiring harness (LS controller package only controls engine)
• Unlocked ECU for local Dyno shop tuning refinement
• LT4 87mm DBW (Drive-By-Wire) throttle body
• Valve covers, retro-fit oil pan (fits most 1955-95 GM front engine, RWD, V8 cars), and timing cover
• LS3 car intake manifold
• Fuel injectors (42 lbs.) and return-less fuel rail
• Coil packs
• Spark plug wires
• Gas/throttle pedal
• Complete front accessory drive includes A/C, power steering, alternator, belts, and pulleys
• ACDelco 41-985 spark plugs (0.040 in. gap)
Note: BluePrint highly recommends their BPPLS01013 air intake kit to ensure proper MAF calculations (same used on Dyno). Recommended fuel is 91-93 octane. Recommended oil is BPP710. Not designed for use with dry sump or pollution-controlled vehicles.
| Product Attributes | |
|---|---|
| Brand | BluePrint Engines |
| Manufacturer's Part Number | BLS4278KB4L7 |
| Part Type | Engine and Transmission Combos |
| Product Line | BluePrint Builder Series LS427/625HP Standard Edition EFI Crate Engine and 4L65/70E Trans Combos |
| UPC | 00887753986436 |
| Crate Engine Family | Chevy LS |
| Engine Assembly Style | Long block |
| Assembled | Yes |
| Intake Manifold Included | Yes |
| Carburetor Included | No |
| Throttle Body Included | Yes |
| Cylinder Heads Included | Yes |
| Cylinder Head Material | Cast aluminum |
| Distributor Included | No |
| Oil Pan Included | Yes |
| Valve Covers Included | Yes |
| Timing Cover Included | Yes |
| Water Pump Included | Yes |
| Harmonic Balancer Included | Yes |
| Spark Plugs Included | Yes |
| Spark Plug Wires Included | No |
| Flexplate Included | Yes |
| Flywheel Included | No |
| Transmission Controller Included | Yes |
| Torque Converter Included | Yes |
| Wiring Harness Included | Yes |
| Computer Included | Yes |
| Quantity | Sold as a kit. |
| Notes | Oil pan has a rear sump. |
| Special Attention | Includes a black finish accessory drive system with a LT1 water pump, type II power steering pump with reservoir, 150 amp LT1 style alternator, and a compact style air conditioning compressor. |
Compatibility
Loading compatibility information...
Keep shopping
More from Blueprint Engines
Blueprint Engines
BluePrint Engines Pro Billet Ready to Run Distributors BPP3513BK Ignition PRO SERIES READY TO RUN DISTRIBUTOR, FORD 351 WINDSOR V8 ENGINE, BLACK CAP
mllBPP3513BK
A$707.39
