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BluePrint Builder Series LS427/625HP Standard Edition EFI Crate Engine and T56 Transmission Combos BLS4278T56 427 c.i. LS Iron Block Edition, Fuel Injected, Manual

SKU: MLLBLS4278T56

Engine and Transmission Combos

BluePrint Builder Series LS427/625HP Standard Edition EFI Crate Engine and T56 Transmission Combos BLS4278T56 427 c.i. LS Iron Block Edition, Fuel Injected, Manual

SKU: MLLBLS4278T56

Engine and Transmission Combos
A$53,508.91
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.
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Description

BluePrint Builder Series LS427/625HP Standard Edition EFI crate engine and T56 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 choice of black or polished pulley kits and a T56 manual 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 T56 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 6-speed Transmission Package:
* McLeod Super Street Pro twin-disc clutch
* Steel bellhousing
* Non-weighted billet flywheel
* Starter
* Gear ratios are 2.66:1 (first), 1.78:1 (second), 1.30:1 (third), 1.00:1 (fourth), 0.80:1 (fifth), and 0.63:1 (sixth)
* Torque converter with 2,200–plus rpm stall

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.

Part Type

Engine and Transmission Combos

Data: v4.2 - Upd: 2026-09-27 14:39:27

Specifications

Product Attributes - Brand
BluePrint Engines
Product Attributes - Manufacturer's Part Number
BLS4278T56
Product Attributes - Part Type
Engine and Transmission Combos
Product Attributes - Product Line
BluePrint Builder Series LS427/625HP Standard Edition EFI Crate Engine and T56 Transmission Combos
Product Attributes - UPC
00887753986474
Product Attributes - Crate Engine Family
Chevy LS
Product Attributes - Engine Assembly Style
Long block
Product Attributes - Assembled
Yes
Product Attributes - Intake Manifold Included
Yes
Product Attributes - Carburetor Included
No
Product Attributes - Throttle Body Included
Yes
Product Attributes - Cylinder Heads Included
Yes
Product Attributes - Cylinder Head Material
Cast aluminum
Product Attributes - Distributor Included
No
Product Attributes - Oil Pan Included
Yes
Product Attributes - Valve Covers Included
Yes
Product Attributes - Timing Cover Included
Yes
Product Attributes - Water Pump Included
Yes
Product Attributes - Harmonic Balancer Included
Yes
Product Attributes - Spark Plugs Included
Yes
Product Attributes - Spark Plug Wires Included
Yes
Product Attributes - Flexplate Included
No
Product Attributes - Flywheel Included
Yes
Product Attributes - Transmission Controller Included
No
Product Attributes - Torque Converter Included
No
Product Attributes - Wiring Harness Included
Yes
Product Attributes - Computer Included
Yes
Product Attributes - Quantity
Sold as a kit.
Product Attributes - Notes
Oil pan has a rear sump.

Reference Information

Brand Name/s Blueprint Engines
StreetFX SKU mllBLS4278T56
SFX Item ID 5182960
Supplier Item Code 5182960
Manufacturer SKU BLS4278T56
Manufacturer UPC 887753986474
Alternative References LS427/625HP, T56

Compatibility

Application Data
  • MakeCHEVROLET
    Beginning Year2006
    Ending Year2015
    Engine TypeV8
    Engine Size7.0L/427
    Engine FamilyCHEVY SMALL BLOCK GEN III/IV LS V8 GAS
    Fuel Delivery TypeFuel injection
    TransmissionManual
    Transmission Manufacturer CodeTremec T56 Magnum

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