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Item #: BLS4273TKX
Our Price: $23,349.00
The product is currently out of stock, current quantity is 0

 

Cancer and Reproductive Harm

https://www.p65warnings.ca.gov

Description 

BLS4273TKX LS 427 c.i. 625 HP Engine and TKX Manual Transmission -Standard Edition Builder Series - Fuel Injected

*Stock may be limited please call for availability before ordering* 
*Prices include shipping to a business address with a forklift or loading dock* 
*Residential addresses or lift gate deliveries please call for a quote*

GM LS Compatible 427 c.i. Engine and TKX Manual Transmission - 625 Horsepower - Standard Edition Builder Series - Fuel Injected

SKU: BLS4273TKX

HP & Torque: 625 HP / 565 FT. LBS

Cylinder Heads: BluePrint Engines 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

Pistons: Forged

Crankshaft: Forged Crank – 4.125" Stroke and Forged 6.125" Rods


Description:

  • Horsepower & Torque: 625 Horsepower / 565 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
  • 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
  • Front and Rear Internally Balanced

Cylinder Heads:

  • BluePrint Aluminum Cylinder Heads - PS8015
  • 72cc Chamber
  • 2.165" Intake / 1.590" Exhaust Valves
  • 259cc Intake / 102cc Exhaust Runners

Cam Specs:

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

Ignition Timing:

  • ECM supplied with calibration

Also Includes:

  • Drive by Wire Throttle Body
  • LS3 Intake Manifold
  • 42# Injectors and Return-less Fuel Rail
  • Harmonic Balancer
  • Valve Covers
  • Retro Fit Oil Pan 
  • Timing Cover
  • Coil Packs
  • All Sensors Required for Engine to Run
  • Spark Plug and Wires and Wiring Harness
  • Gas Pedal

Assembled with Complete TKX Transmission Package:

  • Mcleod Super Street Pro Twin Disc Clutch
  • Hydraulic Throw Out Bearing
  • Bell Housing
  • Billet Flywheel
  • Starter
    • First Gear Ratio: 2.87:1
    • Second Gear Ratio: 1.89:1
    • Third Gear Ratio: 1.28:1
    • Fourth Gear Ratio: 1.00:1
    • Fifth Gear Ratio: 0.68:1

Notes:

  • 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 Engines Recommends Air Intake Kit BPPLS01013 to ensure correct MAF calculations and Dyno calibration are maintained with the provided ECU / tuning.
  • Engine/Trans Package Ships assembled







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Product Accessories for LS 427 c.i. 625 HP Engine and TKX Manual Trans BLS4273TKX

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