BluePrint Engines ProSeries LS 427 C.I. 625 HP Long Block Crate Engine

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
CYLINDER HEADS:
BluePrint Aluminum Cylinder Heads -PS8015
72cc chamber
2.165" intake/1.600" exhaust valves
259cc intake/102cc exhaust runners
CAM SPECS:
Cam Type: Roller
.624 intake .624 exhaust lift
239 intake 255 exhaust duration
@ .050, 114-degree lobe sep.
IGNITION TIMING:
ECM Controlled (not included - customer must reprogram)
ALSO INCLUDES:
Timing cover
LS3 Intake manifold
NOTES:
This engine requires a non-weighted harmonic balancer, and non-weighted flex plate/flywheel.
This engine is specifically designed to replace your existing LS engine - a direct replacement for Gen 4 applications.
Built with a 58x Gen 4 style reluctor and sensors.
Not for use in pollution-controlled vehicles.
Recommended Fuel: 91 Octane
BluePrint Engines recommends a 2200+ RPM stall converter
Because this engine does not ship with an oil pan, we do not dyno test prior to the engine being shipped.

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