BluePrint Engines Pro Series LS 427CI 605HP Base Dressed EFI Long Block PSLS42730CT

Description:

• Horsepower & Torque: 605 Horsepower / 565 FT LBS
• Compression Ratio: 11:1
• Aluminum Heads
• Hydraulic Roller Cam
• Steel Crankshaft
• Forged Pistons

Block:

• BluePrint Engines High Strength Cast Iron (LSX Style) 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
• 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:

• Cam Type: Hydraulic Roller Cam
• .624 Intake / .624 Exhaust Lift
• 239 Intake / 255 Exhaust Duration
• @.050-114 Degree Lobe Separation

Also Includes:

• Harmonic Balancer
• Valve Covers
• LS Swap Oil Pan
• Timing Cover

Engine Accessory Specs:

• 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: N/A
• 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.
• 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

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

Every BluePrint engine is Dyno tested and has strict parameters to pass and
be shipped to the customer. All parts are tested before being released for production:
• DC and Pneumatic assembly tools calibrated daily
• Fatigue Testing
• Durability Testing
• Random subassembly testing
• Quality system is ISO 9001: 2015 certified
• Traceable engine “DNA” electronic barcode record keeping of
manufacturing and performance data