HP & Torque: 625 HP / 575 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 / 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:

  • Roller
  • .624 intake .624 exhaust lift
  • 247 intake 263 exhaust duration
  • @ .050, 114-degree lobe sep.

Ignition Timing:

  • Ignition box required

Also Includes:

  • Carburetor - 850cfm with mechanical secondaries, dual accelerator pumps and mechanical choke
  • Single plane aluminum intake
  • Harmonic balancer
  • Valve covers, retro fit oil pan and timing cover
  • Coil Packs and coil pack harness
  • Crank, cam and MAP sensors
  • Spark plug wires & wiring harness

Notes:

  • This engine requires a non-weighted flex plate/flywheel.
  • BluePrint Engines recommends a 2200+ RPM stall converter.
  • Retro fit oil pan will fit most 1955-1995 GM front engine, RWD, V8 cars
  • Does NOT include ignition box.  BluePrint Engines recommends MSD 6014 Ignition system on LS1HO setting

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: PSLS4270CTC

Fuel Delivery Type: Carbureted, 850cfm

Spark Plug: AC Delco 41-985

Spark Plug Gap: .040"

Harmonic Balancer: Non-Weighted

Flexplate/Flywheel: Non-Weighted

Stall Converter: 2200+

Intake Manifold: Single plane, satin aluminum

Fuel Recommendation: 91 - 93 Octane

Timing (Initial/Total Advance): Ignition box required - BluePrint Engines recommends MSD 6014 Ignition system on LS1HO setting

Firing Order: 1,8,7,2,6,5,4,3