You have no items in your shopping cart.

BluePrint Engines Engine Complete Assembly - PSLS42781CTFK

Check if this part fits your vehicle Select your vehicle to confirm fitment before you buy.

Select vehicle
427CI GM LS Compatible Deluxe Dressed -EFI -Polished Kit
Manufacturer: BluePrint Engines
Manufacturer part number: PSLS42781CTFK
$16,599.00
Ship to
*
*
Shipping Method
Name
Estimated Delivery
Price
No shipping options

BluePrint Engines 427 c.i. GM LS Compatible - Deluxe Dressed - Fuel Injected - Polished Pulley Kit. Includes 30-Month / 50,000 Mile Warranty & Dyno Tested

Note: 427CI GM LS Compatible Deluxe Dressed -EFI -Polished Kit

Watch product video

Products specifications

Attribute name Attribute value
Recommended Spark Plug Gap .045 in.
Rear Main Seal Style 1 Piece
Firing Order 1,8,7,2,6,5,4,3
Compression Ratio 11.0:1
Recommended Stall Converter 2200+ RPM
Torque 520
Horsepower 585
Recommended Octane Fuel 91+ Octane
Crankshaft Vendor BluePrint Engines
Cylinder Head Vendor BluePrint Engines
Distributor Vendor BluePrint Engines
Fuel Delivery Vendor BluePrint Engines
Intake Manifold Vendor BluePrint Engines
Intake Manifold Type BluePrint Engines Cast Aluminum Intake
Block Description BluePrint Engines High Strength Cast Iron (LSX Style) Block - 6 Bolt Main - 4.0665" Bore
Recommended Spark Plug CCH9405
Distributor Included Coil Packs
Spark Plug Wires Included Coil Packs
Quantity EA
Timing Requirements ECM Supplied with Calibration
Pistons Forged
Rotating Assembly Forged Crank - 4.125 in. Stroke and Forged 6.125 in. Rods
Fuel Delivery Type Fuel Injected
Cam Hydraulic Roller - .624 Intake / .624 Exhaust Lift - 239 Intake / 255 Exhaust Duration [email protected] LSA
Engine Balance Internally Balanced
Cylinder Heads LS3 Aluminum Cylinder Heads
Air Cleaner Included No
Flexplate/Flywheel Included No
Recommended Flexplate/Flywheel Non Weighted BPP12654640 - BPPLS1611
Recommended Harmonic Balancer Non-Weighted
Carb/Fuel Injection Included Yes
Cylinder Heads Included Yes
Harmonic Balancer Included Yes
Intake Manifold Included Yes
Spark Plugs Included Yes
Timing Cover Included Yes
Valve Covers Included Yes
Water Pump Included Yes
Pulley Kit Included Yes - Polished - LT1 Style 140amp Alternator, LT1 Style Water Pump, Type II Power Steering Pump with Remote Reservoir, Peanut Style Air Conditioning Compressor.
Oil Pan Included Yes-Rear Sump
Prop 65 Y/N Flag Yes
Prop 65 - Short Label WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Country of Origin US
Condition New
🚗 Compatible with
340 vehicles are compatible with this product · 1963–2026
Looking for fitment details? Add your vehicle and we'll show you instantly whether this part fits. + Add Vehicle
Only registered users can write reviews