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PSLS4272CTF - Fuel Injected Retro-Fit LS 427 Performance Engine 605 HP / 575 TQ

This product may require vehicle validation(s) for proper fitment. Please contact us to confirm correct vehicle fitment and usage.

Shipping: FREE 48 State Truck Freight Shipping (International shipping will require freight quote)
Pricing: $11,499.88

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605 HP/575 TQ

Introducing BluePrint Engines mighty LS 427 cubic inch "Retro Fit" Fuel Injected engine. All new from the ground up, this engine includes everything you need to easily install into your prized ride. Built using new GM block and heads, along with our forged crank, rods and pistons, and also includes a performance hydraulic roller cam and lifters, upgraded roller rockers, universal fit oil pan, GM intake, fuel injectors, rails, drive by wire throttle body and matching throttle pedal, sensors, coil packs & wiring harness, and a new ECM with our custom tune installed. Just add your own water pump and front accessory drive pulleys and you’ll be off to hit the streets with a beastly presence!

The new engine comes with 11:1 compression ratio GM Gen III LS-series block and heads with BluePrint's forged crank and rods balanced within 2 grams, timing cover and intake manifold. Plus, each LS engine is covered by our industry-leading 30-month, 50,000-mile international warranty.

Engine Block

  • New GM Block
  • 1-piece rear main seal

Rotating Assembly

  • Forged Crank: 4.125" stroke
  • Forged 6.125" Rods
  • Forged Mahle Pistons
  • Roller Cam
  • Crankshaft: BluePrint or Scat with 6 Bolt Flange

Cylinder Heads

  • GM L92/LS3 Cylinder Heads

Critical Specs

  • Performance Hydraulic Roller Cam
    • .624 intake / .624 exhaust lift;
    • 239 intake / 255 exhaust duration
    • @ .050, 114 degree lobe sep
  • Compression Ratio: 11:1
  • Fuel Requirements: 91 octane

Engine includes:

  • 90mm DBW throttle body
  • LS3 intake manifold
  • 42# injectors and returnless fuel rail
  • Harmonic balancer
  • Valve covers, retro fit oil pan and timing cover
  • Coil Packs
  • All sensors required for engine to run
  • Spark plug wires & wiring harness
  • Dyno tested & shipped with results

Application List


Shipping Information

  • Item Requires Shipping
  • 500.0 lbs.
  • W5.0000” x H5.0000” x L5.0000”
  • Free Shipping!
  • FREE 48 State Truck Freight Shipping (International shipping will require freight quote)

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