LS 427CI 625HP Complete Crate Engine

Estimated Price $16,290

LS 427CI 625HP Complete Crate Engine
*Shown with optional upgrades

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Our LS 427CI 625HP crate engine package is designed to out perform GM’s LS7 Corvette crate engine. This build features higher quality parts from the ground up at a more reasonable cost. Some of this engines main features include an aluminum GM 6 bolt main block, completely forged bottom end, custom ground hydraulic roller camshaft, performance LS3/L92 cylinder heads, roller rocker arms and a muscle car oil pan designed to fit almost every application. We can also assist you in picking out the correct motor mount and header combination that will fit your hot rod, as well as a complete serpentine pulley kit and transmission.

LS 427CI 625HP Complete Crate Engine

  • Fully Machined LS Aluminum Block
  • Forged steel 4.125” stroke crankshaft (Eagle, Scat, or LPC)
  • 6.125″ Connecting Rods With ARP Bolts (Eagle, Scat, or LPC)
  • Performance Forged Pistons (Mahle, Icon, DSS, or JE)
  • Complete Assembly Internally Balanced
  • Performance rings hand filed to match application
  • Custom Ground Hydraulic Roller Camshaft
  • Hydraulic Roller Lifters
  • Performance Timing chain set
  • Melling Oil pump
  • LS3/L92 Rectangle Port Aluminum Performance Cylinder Heads
  • 2.165 Pro Series Intake Valves
  • 1.590 Pro Series Exhaust Valves
  • 1.295” Dual Performance Valve Springs
  • 7 Degree Valve Retainers And Locks
  • Performance Rocker Arms
  • Chrome Moly Pushrods
  • Main bolts
  • ARP Head bolts
  • Aluminum Timing And Rear Cover
  • Aluminum Valley Tray
  • Muscle Car Stroker Oil Pan
  • Aluminum Valve Covers (Black, or Polished)
  • Harmonic Balancer
  • Water Pump
  • Fabricated Aluminum Intake Manifold (Black, or Shinny)
  • Cable Driven Throttle Body (Black, or Shinny)
  • Fuel Injectors
  • Fuel Rails
  • LS3 Style Coils
  • Coil Harness
  • 8.5mm Ignition Wires
  • Holley Terminator X ECU
  • Engine Wiring Harness
  • Fuel Injector Harness
  • Wide Ban O2 Sensor
  • Intake Air Temperature Sensor
  • Crankshaft Position Sensor
  • Camshaft Position Sensor
  • Engine Coolant Temperature Sensor
  • Manifold Air Pressure Sensor
  • Oil And Filter
  • Spark Plugs
  • Engines are photo documented during the building process
  • 2 Year Unlimited Miles Warranty

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Pulley Systems

LS Alt Only Pulley Kit

LS Alt Only Pulley Kit

This system includes the following items:

  • Chrome 140 Amp Alternator
  • Polished Alternator Pulley
  • Polished Crankshaft Pulley
  • Polished Water Pump Pulley
  • Polished Aluminum Brackets With Fan & Nose Cover
  • 8 Rib Serpentine Belt
  • Installed on your engine

Add $1,675

LS Alt/PS Pulley Kit

LS Alt/PS Pulley Kit

This system includes the following items:

  • Chrome 140 Amp Alternator
  • GM Type 2 Power Steering Pump With Reservoir
  • Polished Alternator Pulley
  • Polished Crankshaft Pulley
  • Polished Water Pump Pulley
  • Polished Aluminum Brackets With Fan & Nose Cover
  • Polished Idler Pulley
  • Spring Loaded Belt Tensioner
  • 8 Rib Serpentine Belt
  • Installed On Your Engine

Add $1,875

LS Alt/PS And AC Pulley Kit

LS Alt/PS And AC Pulley Kit

This system includes the following items:

  • Chrome Plated 140 Amp Alternator
  • GM Type 2 Power Steering Pump With Reservoir
  • Chrome Plated AC Compressor
  • Polished Alternator Pulley
  • Polished Crankshaft Pulley
  • Polished Water Pump Pulley
  • Polished Aluminum Brackets With Fan & Nose Cover
  • Spring Loaded Belt Tensioner
  • 8 Rib Serpentine Belt
  • Installed on your engine

Add $2,300

Dyno Testing

Have your new crate engine Dyno tested!

Have your new crate engine Dyno tested!

Proformance Unlimited measures over 30 parameters that are monitored and logged to the computer during each engine test. A complete printout, including graphs.

We tune your engine on the dyno for maximum power. No more endless trial and error methods at the track are required. You see your results instantly! Dynamometer testing costs a fraction of what you have invested. Take the guesswork out of tuning - by dynoing !

This system includes the following items:

  • Your engine will be broken in under various load conditions
  • Tested in real world conditions through headers and mufflers
  • Precise horsepower and torque rating with graph and numerical print out
  • Induction system tuned for optimal performance
  • Dyno session video taped

Add $650

LS Conversion Install Package

LS Conversion Install Package: (Basic)

LS Conversion Install Package: (Basic)

So you're ready to swap in a super lightweight engine that will require no maintenance, yet cranks out unbelievable horsepower and torque. This install package we created will help you get it installed into your classic truck or car with minimal headaches.

This system includes the following items:

  • Adjustable LS Conversion Engine Mounts
  • Prothane Motor Mounts
  • Ceramic Coated Headers
  • Automatic Flexplate
  • LS Series Crankshaft Hub Adapter TH400/TH350/700R4
  • Crankshaft Bolts
  • GM Performance Starter
  • Starter Bolt Kit
  • Bellhousing Bolts TH400/TH350/700R4

Add $1,550

Parts

BeCool Radiator

BeCool Radiator

This system includes the following items:

Add Starting @ $1,399

Fuel Tank with Electric Pump

Fuel Tank with Electric Pump

This system includes the following items:

Add Starting @ $550

Transmission

LS 4L80E Transmission Package

LS 4L80E Transmission Package

This system includes the following items:

Add $4,950

LS TKx Transmission Package

LS TKx Transmission Package

This system includes the following items:

Add Starting @ $5,400

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