BluePrint Engines Pro Series Chevy LS 427 ci. 625HP EFI Drop-In Base Long Block Crate Engine PSLS427
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Product Overview:
Description
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:
- 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
WARRANTY:
- 30 month / 50,000 mile
NOTES:
-
This engine requires a non-weighted harmonic balancer, and non-weighted flexplate/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.
Warranty
The satisfaction of our customers is our highest priority at BluePrint Engines. We use quality components to balance your engine's rotating assembly within two grams of spec. We dyno test your crate engine and certify that it's ready to deliver horsep
Specifications
Your BluePrint engine was dyno tested with the parts and specifications listed below. If you prefer to install a different part, your engine may not produce the horsepower recorded on your dyno sheet.
Part Number: PSLS4271CT
Fuel Delivery Type: Fuel Injected
Spark Plug: AC Delco 41-985
Spark Plug Gap: .040"
Harmonic Balancer: Non-Weighted
Flexplate/Flywheel: Non-Weighted
Stall Converter: 2200+
Intake Manifold: LS3
Fuel Recommendation: 91-93 Octane
Timing (Initial/Total Advance): Ignition timing and spark advance are controlled by Powertrain Control Module
Firing Order: 1,8,7,2,6,5,4,3
Notes: Recommended break in oil for your BluePrint Crate Engine: BPP710, Not for EGR This engine is specifically designed to replace your existing LS engine. Built with a 58x Gen 4 style reluctor and sensors, this engine is a drop in for Gen 4 applications.
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