LS7 427 625HP EFI

Starting at $14,995

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Our complete LS7 427CI 625HP crate engine package dyno tested ready for installation. This build features the Aluminum LS7 Series 6 bolt block. Comes ready to install with the Muscle Car oil pan. We can also assist you in picking out the correct motor mount and header combo that will fit your hot rod. If you are in need of a serpentine pulley kit complete with components or a transmission we can assist you with that as well.

  • Fully Machined LS7 aluminum Block
  • Block, Oil Pan, Timing Cover Custom Painted “Customers Choice Of Color”
  • Eagle 4340 forged steel 4.00” stroke crankshaft
  • Eagle H-Beam Rods 6.125”
  • Performance Forged Pistons (Mahle, Icon, DSS, or JE)
  • Complete Assembly Internally Balanced
  • Comp Cams Custom Ground Hydraulic Roller Camshaft
  • Hydraulic Roller lifters
  • Timing chain set
  • Melling Oil pump
  • LS3/L92 Rectangle Port Aluminum Performance Cylinder Heads
  • 2.02 Pro Series Intake Valves
  • 1.60 Pro Series Exhaust Valves
  • 1.295” Dual Performance Valve Springs
  • 7 Degree Valve Retainers And Locks
  • Rocker Arms With Upgraded Trunnion
  • Manley Chrome Moly Pushrods
  • Main bolts
  • ARP Head bolts
  • Aluminum Timing And Rear Cover
  • Aluminum Valley Tray
  • 5 Quart Muscle Car Oil Pan
  • Aluminum Valve Covers
  • Coil pack bracket
  • F-body style Balancer
  • Water Pump
  • FiTech Fabricated Intake Manifold
  • 92mm Cable Driven Throttle Body
  • Oil And Filter
  • Electronics/Wiring Harnesses:
  • Coil Packs
  • FiTech ECM Calibrated
  • Main ECM Engine Wiring Harness
  • Coil Pack Harness
  • Fuel Injector Harness
  • 8MM Plug Wires
  • FiTech EFI Controller
  • Sensors/Fuel:
  • Wide Ban O2 Sensor
  • Intake Air Temperature Sensor
  • Crankshaft Position Sensor
  • Camshaft Position Sensor
  • Oil Pressure Sensor
  • Oil Temperature Sensor
  • Engine Coolant Temperature Sensor
  • Engine Knock Sensor
  • Manifold Air Pressure Sensor
  • Spark plugs
  • Fuel Injectors
  • Your engine will be dyno tested and tuned for optimum performance


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


March Performance Pulleys

Pulley Systems

LS Alt Only Pulley Kit

LS Alt Only Pulley Kit

This system includes the following items:

  • March Performance Style Tracks Kit:
  • Chrome 105 Amp alternator
  • Alternator pulley
  • Crankshaft pulley
  • Water pump pulley
  • Aluminum bracket with fan & nose cover
  • Serpentine belt
  • Installed on your engine

Add $750

LS Alt PS Only Pulley Kit

LS Alt PS Only Pulley Kit

This system includes the following items:

  • March Performance Style Tracks Kit:
  • 105 Amp alternator chrome
  • Chrome power steering pump
  • Alternator pulley
  • Crankshaft pulley
  • Water pump pulley
  • Power steering pump pulley
  • Aluminum bracket with fan & nose cover
  • Serpentine belt
  • Installed on your engine

Add $1,675

LS Alt PS And AC Pulley Kit

LS Alt PS And AC Pulley Kit

This system includes the following items:

  • March Performance Style Tracks Kit:
  • Chrome 105 Amp alternator
  • Power steering pump
  • Chrome AC pump
  • Alternator pulley
  • Crankshaft pulley
  • Water pump pulley
  • Power steering pump pulley
  • AC pump nose cover
  • Aluminum bracket with fan & nose cover
  • Serpentine belt
  • Installed on your engine

Add $2,100


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