Great package to start your LS swap. Our LS3 440HP makes 440HP @ 6000 & 435 ft-lbs @ 4600 with a smooth idle street cam and great vacuum. The self-learning fuel injection package makes future performance cam and/or cylinder head upgrades a breeze.

Ohio Speed Shops powertrain packages are built as ordered so we can provide you personalized options and service.

Ohio Speed Shops Dyno Tested LS3 440HP & Tremec 5 Speed Manual Connect & Cruise Powertrain Package Includes:

  • FREE 48 State Truck Freight Shipping
  • Initial engine break-in on dyno prior to test and tuning
  • Engine Dyno Tested and Tuned
  • Limited 2 year / 50,000 mile parts & labor warranty for street registered/licensed vehicles
  • Brand New Chevrolet Performance LS3 Long Block Engine
  • Engine harness, ecu & controller
  • Self Learning Fuel Injection System
  • Throttle Cable Bracket
  • Air Cleaner
  • Installed Black Anodized Serpentine Drive SystemA/C, P/S & 170amp Alt

                (A/C Delete - $200.00) or (P/S Delete - $150.00)

  • New HD Starter with bolts
  • Your choice of oil pan: Holley 302-1, Holley 302-2, Holley 302-3, GM F/body, GM C6, Chevy Performance Musclecar Pan or Mast Motorsports 401-111 swap oil pan
  • Tremec 5-Speed Manual Transmission. 1st 2.87, 2nd 1.89, 3rd 1.28, 4th 1.00, 5th .64
  • Super Duty 621 “Made in USA” Bell Housing with Hardware Package
  • Advanced Friction™ billet steel 14” flywheel
  • Advanced Friction™ STR clutch set
  • Super HD CSC (hydraulic throwout bearing) with pressure and bleed hose
  • Shifter Lever with Knob
  • HD Transmission Mount
  • 3 Quarts Synchromesh Trans Fluid Engine


  • Power: 440 HP @ 6000 RPM, 435 ft. lbs. of torque @ 4600 RPM with a smooth idle street cam and very good vacuum.
  • Compression Ratio: 10.7:1
  • Recommended Fuel: 92 Octane
  • Maximum Recommended RPM: 6600

We’ve matched the engines and transmissions for optimal performance and durability. The self-learning controllers are designed for retrofit installations in older vehicles, for easier and quicker installation and more importantly operation without the need for third-party tuning.

When it comes to factory-engineered performance and convenience, nothing beats Ohio Speed Shop’s powertrain packages. With one package / one part number / one price you get the engine, transmission, electronic controllers and additional hardware.

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Dyno Tested LS3 440HP & 5 Speed Trans Package OSSLS3440BTK6

Product Information

  • $15,900.00

Tags: Free 48 State Truck Freight Shipping!