PSLS4272CTFK BluePrint Engines GM LS Compatible 427 c.i. ProSeries Engine 625 Horsepower Deluxe Dressed with Polished Pulley Kit Fuel Injected

HP & Torque: 625 HP / 565 FT LBS
Compression Ratio: 11:1
Aluminum Heads
Hydraulic Roller Cam
Forged Crank
Forged Pistons

BLOCK:
OEM Block Machined in the USA!
6-Bolt Main
4.060" Bored to 4.069
1-Piece Rear Main Seal

ROTATING ASSEMBLY:
New Forged Crankshaft
4.125" stroke
Forged 6.125" connecting Rods
Forged Pistons
Internal balance

CYLINDER HEADS:
BluePrint Aluminum Cylinder Heads -PS8015
72cc chamber
2.165" intake/1.600" exhaust valves
259cc intake/102cc exhaust runners

CAM SPECS:
Roller
.624 intake .624 exhaust lift
239 intake 255 exhaust duration
@ .050, 114 degree lobe sep.

IGNITION TIMING:
ECM supplied with calibration
Not capable of transmission control
Transmission controller required

ALSO INCLUDES:
DBW Throttle Body
LS3 intake manifold
42# injectors and returnless fuel rail
Harmonic balancer
Valve covers, retro fit oil pan and timing cover
Coil Packs
All sensors required for engine to run
Spark plug wires & wiring harness
Gas pedal
Dyno tested & shipped with results
Complete Front Accessory Drive Premium Polished

Alternator, A/C, P/S, All belts and pulleys.

WARRANTY:
30 month / 50,000 mile

NOTES:
This engine requires a non-weighted flexplate/flywheel.
Recommended Fuel: 91 Octane
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 Included 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 included ECU is unlocked for further refinement at your local dyno shop if required.

BluePrint Engines Recommends Air Intake Kit BPPLS01013 to ensure correct MAF calculations and Dyno calibration are maintained with the provided ECU / tuning.