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*Engine Shown With Optional Upgrades

LS 441CI Airboat Engine 700HP (Dual Plenum)

$25,950.00

Chevy LS Based Dual Plenum 441CI stroker with 700HP and 620TQ performance aluminum head engine combination was designed for maximum performance on pump gas. Typical power range is 650HP @ 5500 rpm and 620TQ @ 4300 rpm. All engines can be custom painted to match your airboat at your request.

Engine Build Specifications:

  • Custom Built LS 441CI 700HP (Dual Plenum) Airboat Crate Engine Built In Melbourne, FL:
  • Fully Machined Aftermarket Aluminum Race Block (Dart)
  • 4340 Forged Steel 4.125” Stroke Crankshaft (Eagle)
  • Forged Connecting Rods 6.125” (Eagle)
  • Performance Forged Pistons (Mahle)
  • Complete Assembly Balanced (Internal)
  • Performance Rings Hand Filed To Match Application
  • Custom Ground Hydraulic Roller Camshaft (Comp)
  • 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
  • Roller Rocker Arms
  • Chrome Moly Pushrods
  • Main bolts (Dart)
  • Head studs (ARP/Dart)
  • Aluminum Timing And Rear Cover
  • Aluminum Valley Tray
  • Stroker Oil Pan
  • Harmonic Balancer
  • Aluminum Valve Covers (Black)
  • LS3 Style Coils
  • Sniper EFI Fabricated Intake Manifold Dual Plenum 102mm LS3/L92
  • Two 90MM DBW Throttle Bodies
  • Fuel Injectors
  • Fuel Rails
  • Coil Harness
  • Spark Plugs
  • 8.5mm Ignition Wires
  • Holley Dominator ECU
  • Holley Engine Wiring Harness Extended
  • Fuel Injector Harness
  • Holley Power Harness
  • Holley Wide Ban O2 Sensor
  • Intake Air Temperature Sensor
  • Crankshaft Position Sensor
  • Camshaft Position Sensor
  • Engine Coolant Temperature Sensor
  • Holley MAP Sensor
  • Holley MAP to MAP Conversion Harness
  • Oil And Filter
  • Spark Plugs
  • Build will be photo documented during the assembly process
  • 1 Year 200 hour marine/airboat warranty

Additional Items Included:

  • Water Pump Pulley
  • Alternator Pulley
  • Alternator Bracket
  • 140 Amp One Wire Alternator
  • A Serpentine Belt To Match Application
  • Universal Bypass Regulator
  • Rear Fuel Hose
  • Fuel Pressure Sending Unit
  • Oil Pressure Send Unit
  • Mic Wire Extensions
  • Starter
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