BluePrint Builder Series LS427/585HP Standard Edition EFI Crate Engine and 4L65/70E Trans Combos

The BluePrint Builder Series LS427/585HP 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 585 hp, this standard edition builder series includes a pulley kit and 4L65/70E automatic transmission. The aluminum 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 520 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 LS427/585HP Standard Edition EFI crate engine and 4L65/70E transmission combos.

Other product features, items, and specifications include:

Block:

* BluePrint Engines High-Strength Cast Iron (LSX Style) Block
* Increased deck thickness and strength webbing
* Utilizes OEM LS3 front and rear covers
* Improved water jacket design
* Extended cylinder skirt
* One-piece rear main seal
* Priority main oiling
* 4.0695 in. Bore
* 6-bolt main

Rotating Assembly:

* Forged crankshaft
* 4.125 in. stroke
* Forged 6.125 in. connecting rods
* Forged pistons
* Internally balanced front and rear

Cylinder Heads:

* BluePrint aluminum cylinder heads
* 69cc Chamber
* 2.165 in. Intake /1.590 in. Exhaust valves
* 259cc Intake /102cc Exhaust runners

Cam Specs:

* Hydraulic Roller
* 0.624 Intake / 0.624 Exhaust lift
* 239 Intake / 255 Exhaust duration
* @.050-114 degree lobe separation

Ignition Timing:

* ECM supplied with calibration
* Not capable of transmission control
* Transmission Controller Required

Other Components:

* Front accessory drive with water pump, alternator, power steering pump, and A/C compressor
* Drive-by-Wire throttle body
* LS3 cast aluminum intake manifold
* LS swap oil pan
* Water pump
* Engine harness and ECU Kit
* Injectors and fuel rail kit
* Spark plugs and wiring
* Harmonic balancer
* Timing cover
* Valve covers
* Coil packs
* Gas pedal

Important Notes: This engine requires a non-weighted flex plate/flywheel. Recommended Fuel: 91 Octane. The front accessory drive on this engine fits many vehicles, however it is the customer responsibility to accurately measure and confirm fitment. Note this is a low-profile design, but things such as power steering hoses, alternator wiring, and additional fittings/fabrication may be required on some vehicles. BluePrint Engines recommends a 2200+ RPM stall converter. Retro fit oil pan will fit most 1955-1995 GM front engine, RWD, V8 cars. Not for use in pollution-controlled vehicles or in dry sump applications. The LS controller package is for engine control only. Does not contain any transmission or body control. The ECU comes with calibration that is optimal for our engine, however, please note that vehicle parameters such as gearing, tire size, vehicle weight, air intake, headers, etc. may necessitate additional tuning once installed into your specific vehicle. The ECU is unlocked for further refinement at your local dyno shop if required.

BluePrint Engines recommends their air intake kit (BPPLS01013) to ensure correct MAF calculations and Dyno calibration are maintained with the provided ECU/tuning. Show Less