LS7 427CI 700HP Yenko(R) Design

Starting at $16,995

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The LS7 427 Cubic Inch wet sump next generation Yenko(R) crate engine is designed to look cool and produce 700+HP. This package design will fit almost any early hot rod. We will custom paint the engine block, oil pan, timing cover, water pump, and valley pan to the color of your choice at no additional cost. The FiTech self tuning Ultimate LS unit is a neat minimal wire installation that will be trouble free. The polished aluminum valve covers are a standard feature in this design to keep the yesteryear look going. This engine package will also arrive with a custom made bracket to relocate coil packs for an added clean install look. We can also outfit this engine with a serpentine belt kit if you would like.

  • LS7 GM Aluminum Block
  • Eagle 4.000 Forged Steel Stroker Crank 58X
  • Eagle H-Beam Rods
  • Mahle Forged Pistons
  • Complete Assembly Internally Balanced
  • Comp Cams LS3 3-Bolt Custom Ground Hydraulic Roller Camshaft
  • Hydraulic Roller lifters
  • Roller timing chain set
  • Melling Oil pump
  • LS3/L92 Rectangle Port Aluminum Performance Cylinder Heads
  • Performance Springs
  • Comp Cams 1.7 Rocker arms
  • Manley Chrome moly Pushrods
  • Main bolts
  • ARP Head bolts
  • LS7 Aluminum Timing And Rear Cover
  • LS7 Aluminum Valley Tray
  • 5 Quart Muscle Car Oil Pan
  • GM Performance Polished Aluminum Valve Covers
  • Coil pack relocater bracket
  • F-body style Balancer
  • Water Pump
  • FiTech Fabricated Intake Manifold
  • FiTech Fuel Rail
  • 102mm Cable Driven Throttle Body
  • Oil And Filter
  • Electronics/Wiring Harnesses:
  • MSD Coil Packs
  • FiTech ECM Calibrated
  • Main ECM Engine Wiring Harness
  • Coil Pack Harness
  • Fuel Injector Harness
  • 8MM Plug Wires
  • FiTech EFI Controller
  • Sensors/Fuel:
  • Dual Wide Ban O2 Sensors
  • 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 tested and tuned for optimum performance
  • 2 Year unlimited mileage warranty

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 $975

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 $1,875

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 $2,300


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