BluePrint Engines 427CI ProSeries Stroker Crate Engine | GM LS Style | Dressed Longblock with Fuel Injection | Aluminum Heads | Roller Cam
Part #: PSLS4272CTF
- HP & Torque: 625 HP / 550 FT LBS
Compression Ratio: 11:1
Hydraulic Roller Cam
- OEM Block Machined in the USA!
4.060" Bored to 4.069
1-Piece Rear Main Seal
- New Forged Crankshaft
Forged 6.125" connecting Rods
- BluePrint Aluminum Cylinder Heads -PS8015
2.165" intake/1.600" exhaust valves
259cc intake/102cc exhaust runners
.624 intake .624 exhaust lift
239 intake 255 exhaust duration
@ .050, 114 degree lobe sep.
- ECM supplied with calibration
Not capable of transmission control
Transmission controller required
- 90mm DBW throttle body
LS3 intake manifold
42# injectors and returnless fuel rail
Valve covers, retro fit oil pan and timing cover
All sensors required for engine to run
Spark plug wires & wiring harness
Dyno tested & shipped with results
- 30 month / 50,000 mile
- 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.