HP & Torque: 625 HP / 565 FT. LBS

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



DETAILED INFORMATION

Description:

  • HP & Torque: 625 HP / 565 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

Notes:

  • This engine requires a non-weighted harmonic balancer, and non-weighted flex plate/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.
  • 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.


Engine Accessory 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