GM LS Compatible 427 c.i. ProSeries Engine - 600 HP - Deluxe Dressed with Controller and Black Pulley Kit - Fuel Injected
GM LS Compatible 427 c.i. ProSeries Engine - 600 HP - Deluxe Dressed with Controller and Black Pulley Kit - Fuel Injected
GM LS Compatible 427 c.i. ProSeries Engine - 600 HP - Deluxe Dressed with Controller and Black Pulley Kit - Fuel Injected
GM LS Compatible 427 c.i. ProSeries Engine - 600 HP - Deluxe Dressed with Controller and Black Pulley Kit - Fuel Injected
GM LS Compatible 427 c.i. ProSeries Engine - 600 HP - Deluxe Dressed with Controller and Black Pulley Kit - Fuel Injected
GM LS Compatible 427 c.i. ProSeries Engine - 600 HP - Deluxe Dressed with Controller and Black Pulley Kit - Fuel Injected
GM LS Compatible 427 c.i. ProSeries Engine - 600 HP - Deluxe Dressed with Controller and Black Pulley Kit - Fuel Injected
GM LS Compatible 427 c.i. ProSeries Engine - 600 HP - Deluxe Dressed with Controller and Black Pulley Kit - Fuel Injected

GM LS Compatible 427 c.i. ProSeries Engine - 600 HP - Deluxe Dressed with Controller and Black Pulley Kit - Fuel Injected

SKU: PSLS4275CTFKB

GM LS Compatible 427 c.i. ProSeries Engine - 600 HP - Deluxe Dressed with Controller and Black Pulley Kit - Fuel Injected

SKU: PSLS4275CTFKB

Horsepower & Torque: 600 Horsepower / 530 FT. LBS Torque

Cylinder Heads: BluePrint Engines LS3 Aluminum Cylinder Heads

Compression Ratio: 11:1

Camshaft: Hydraulic Roller Cam - .624 Intake / .624 Exhaust Lift and 239 Intake / 255 Exhaust Duration @ .050 - 114° LSA - Three Bolt Cam

Pistons: Forged

Crankshaft: Steel Crank - 4.125" Stroke and 6.125" Rods

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Description: 

  • Horsepower & Torque: 600 Horsepower / 530 FT LBS
  • Compression Ratio: 11:1
  • Aluminum Heads
  • Hydraulic Roller Cam
  • Forged Crank
  • Forged Pistons

Block:

  • BluePrint Engines High Strength Cast Iron Block
  • Increased Deck Thickness and Strength Webbing
  • Extended Cylinder Skirt
  • Priority Main Oiling
  • 4.0685" Bore
  • 6-Bolt Main
  • 1-Piece Rear Main Seal
  • Improved Water Jacket Design
  • Utilizes OEM LS3 Front and Rear Covers

Rotating Assembly:

  • New Forged Crankshaft
  • 4.125" Stroke
  • Forged 6.125" Connecting Rods
  • Forged Pistons
  • Internally Balanced Front and Rear

Cylinder Heads:

  • BluePrint Aluminum Cylinder Heads - PS8015
  • 69cc Chamber
  • 2.165" Intake / 1.590" Exhaust Valves
  • 259cc Intake / 102cc Exhaust Runners

Cam Specs:

  • Hydraulic Roller
  • .624 Intake / .624 Exhaust Lift
  • 239 Intake / 255 Exhaust Duration
  • @.050-114 Degree Lobe Separate

Ignition Timing:

  • ECM Supplied with Calibration
  • Not Capable of Transmission Control
  • Transmission Controller Required

Also Includes:

  • Valve Covers
  • LS Swap Oil Pan
  • Timing Cover
  • Drive by Wire Throttle Body
  • Engine Harness and ECU Kit
  • LS3 Fabricated Intake Manifold
  • Injectors and Fuel Rail Kit
  • Coil Packs
  • Spark Plugs and Wires
  • Harmonic Balancer 
  • Throttle Pedal
  • Installed Complete Black front accessory Drive. WP, Alt, P/S, A/C, all belts and pulleys.

Notes:

  • This engine requires a non-weighted flex plate/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.
  • The Included BluePrint Engines LS controller package contains a fully tested, calibrated, locked ECU, optimized for this specific engine. This package has undergone extensive testing for performance, reliability and the safety of you and your engine.
  • The front accessory drive on this engine fits many vehicles, however it is the customer responsibility to accurately measure and confirm fitment.  Note this is a low-profile design, but things such as power steering hoses, alternator wiring, and additional fittings/fabrication may be required on some vehicles.
 

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: PSLS4275CTFK

Fuel Delivery Type: Electronic 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: GM Plastic Intake

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.Universal fit oil pan. Also includes sensors, coil packs and wiring harness, and a new ECM with our custom tune installed, drive by wire throttle body and matching throttle pedal.

Header Partners: 
Click here for our Header Partners and recommendations.

Click here to download a copy of the Installation Guide that came with your BluePrint engine.

BETTER THAN THE REST.

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 horsepower and torque.

We give your BluePrint engine the industry's best-in-class warranty for 30-months / 50,000 miles — with the extra confidence only BluePrint can provide. Our warranty applies to individual or professional installations and is fully transferable.

For a detailed overview of our warranty, click here.

IT ALL COMES DOWN TO RESULTS.

We make sure we hit our target horsepower and proper torque with every crate engine. We use an advanced computerized balancer to get our rotating assemblies within two grams, ensuring silky smooth power over the entire RPM range. That's precisely why our engines sound and run better than our competitors.

BRAGGING RIGHTS INCLUDED!

A comprehensive, dyno-generated printout showing these critical specs will accompany your delivered engine. No more guessing or wondering what your installed engine's real-world peak horsepower and torque ratings actually are. Any doubters in the crowd? Simply flash 'em your dyno results!

This engine will be dyno tested before it ships to you at no additional charge (others charge $500)!

RECOMMENDED PRODUCTS:
BluePrint Engines 10w30 Engine Oil - 1 Quart
BluePrint Engines Crate Engine Break-In Oil — 1 Quart
TrueBlue Performance Octane Boost
BluePrint Engines TrueBlue Performance Octane Booster
BluePrint Engines TrueBlue UltraCool Antifreeze Coolant CONCENTRATE
BluePrint Engines TrueBlue Power Steering Fluid
BluePrint Engines TrueBlue Transmission Fluid UNIVERSAL ATF/MTF
Gen IV LS and 2009+ Gen III Hemi Compatible Oil Filter
EFI Fuel Pump and Plumbing Kit BPP5267 - For Fuel injected engines
Holley EFI In-Tank Retrofit Fuel Pump - 450 LPH - Return Style
EFI Billet Aluminum Fuel Pressure Bypass Regulator - 40-75 PSI and -10AN ORB - Black
Liquid Filled Fuel Pressure Gauge - 0-100 PSI
Muscle car swap LS and Hemi Universal Air Intake Kit
GM LSX Compatible Starter – Delco Style - OEM Finish
168-Tooth Steel Flex Plate - 1-Piece Rear Main Seal - OEM LS 1-Piece Balance - 4L60E/4L70E - GM LS Compatible
168-Tooth Nodular Iron Flywheel - 6-Bolt Crank - 11" or 12" Clutch - GM LS Compatible
BluePrint Parts – GM LS Compatible Water Neck – 45°
BluePrint Parts – GM LS Compatible Water Neck – Straight
GM LS Compatible Front Accessory Drive - Full Serpentine with Alternator | AC | Power Steering | Water Pump | Brackets and Bolts
GM LS Compatible Front Accessory Drive - Full Serpentine with Alternator | Power Steering | Water Pump | Brackets and Bolts
GM LS Compatible Front Accessory Drive - Full Serpentine with Alternator | AC | Water Pump | Brackets and Bolts