PSLS4270CTC BluePrint Engines 427CI 625HP ProSeries Stroker Crate Engine, GM LS Style, Dressed Long block with Carburetor, Aluminum Heads, Roller Cam

DESCRIPTION:
HP & Torque: 625 HP / 550 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

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:
Ignition box required

ALSO INCLUDES:
Carburetor - 850cfm with mechanical secondaries, dual accelerator pumps and mechanical choke
Single plane aluminum intake
Harmonic balancer
Valve covers, retro fit oil pan and timing cover
Coil Packs and coil pack harness
Crank, cam and MAP sensors
Spark plug wires & wiring harness
Dyno tested & shipped with results

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
WARNING: Cancer and Reproductive Harm-www.P65Warnings.ca.gov