BluePrint PSLS4272CTF GM 427 LS Engine, Dressed Fuel Injected Drop-in

  • Sale
  • Regular price $12,174.00

L92 Chevy LS V8, LS3 Chevy LS V8, 427 cu. in. Engine Displacement, Long Block Crate Engine Type
**$175 shipping included in price
Important Messages:
  • This item ships directly from the manufacturer. It may take an additional 41 business days for BluePrint Engines to ship this item.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.


True Blue Power! BluePrints pro engine builders are enthusiasts just like you and it shows in the quality and performance of every engine they build. Each BluePrint crate engine is carefully dyno tested and ships with printed, proven results. If you’re looking serious horsepower at an affordable price, BluePrint Engines is the choice for you!

GM 427 LS Series - Dressed Fuel Injected Drop-in - Aluminum Heads


  • HP & Torque: 625 HP / 565 FT LBS
  • Compression Ratio: 11.0:1
  • Aluminum Heads
  • Forged Pistons
  • Roller Cam
  • Forged Crank
  • Part #: PSLS4272CTF


  • New GM LS3/L92 Aluminum Block!

Rotating Assembly

  • Forged Steel Crankshaft
  • Forged Mahle Pistons
  • Forged I beam rods
  • Mahle performance rings
  • Balanced Rotating Assembly
  • Oil pump
  • Hydraulic roller cam
  • Premium single true roller timing set
  • GM factory roller rockers with upgraded full roller trunion

Cylinder Heads

  • New BluePrint Aluminum Cylinder Heads - PS8015
  • Chrome moly retainers and spring locators
  • Dual Coil .650" lift valve springs
  • 2.165 swirl polished intake valves
  • 1.590 swirl polished exhaust valves
  • Hardened push rods

Cam Specs

  • Roller - .624 intake .624 exhaust lift, 239 intake 255 exhaust duration @ .050, 114 degree lobe sep.

Ignition Timing

  • ECM supplied with calibration

Also 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


This engine requires a non-weighted flexplate/flywheel.Recommended Fuel: 91 OctaneBluePrint Engines recommends a 2200+ RPM stall converter.Retro fit oil pan will fit most 1955-1995 GM front engine, RWD, V8 cars

- This engine has a 08-09 Corvette style crank pulley. 


Not for EGR Universal fit oil pan, drive by wire throttle body and matching throttle pedal. Also includes sensors, coil packs and wiring harness, and a new ECM with our custom tune.

Some parts are not legal for use in California or other states with similar laws/regulations