LS3 Connect & Cruise Powertrain System – 6.2L Engine with 4L65-E Automatic Transmission


  • LS3 6.2L (376 cu in) 430 hpEngine
  • 4L65-E Four-Speed Automatic Trans.
  • Engine and Trans. Control Modules
  • Torque Converter Included
  • Exhaust Manifolds NOT INCLUDED
REBATE AVAILABLE: $500/$750/$1,000 Prepaid VISA Gift Card From Chevrolet Performance. See 'Rebate' tab below for details.
Due to world events we are working with our manufacturers every day to ship and receive parts. If the part you are looking for is time sensitive please give our team a call at 855-806-1147 before ordering to ensure it's availability.

Shipping is free, but there is a delivery fee for residential addresses.

SKU: CPSLS34L65E Categories: , Tag:

LS3 Connect & Cruise with 4L65-E Transmission

This LS3 powertrain system brings Corvette and Camaro power direct to your project build! The LS3 is the power behind the C6 Corvette and 5th generation Camaro SS. It offers the lightweight advantage of an aluminum cylinder block, aluminum heads and a composite intake manifold – all an advantage over the heavy cast iron engines used in early cars. Reductions in frontal weight are beneficial to the overall balance and performance of your specialty build, hot rod, or muscle car. This powertrain package includes the engine, automatic transmission, electronic controllers and all the necessary wire harnesses – all for less than the cost of buying the components separately.

Inside, this LS3 is filled with components designed for high performance and longevity. A sturdy reciprocating assembly combines with L92-type rectangular-port heads to deliver a 10.7:1 compression ratio. A high-lift, hydraulic roller camshaft with 0.551-inch of lift on the 2.16-inch intake valves and 0.522-inch lift on the 1.59-inch exhaust valves, enhances the LS3’s tremendous airflow and broad torque curve. All combined you’ll see 430hp at 6,300 rpms.

Chevy’s engines and transmissions are matched for optimal performance and durability, so you can push for every possible bit of horsepower with total confidence. Put this combo to work in your build and enjoy a great balance of performance and efficiency. The specially calibrated controllers are designed for retrofit installations in older vehicles, for easier and quicker installation. This LS3 is backed by the 4L65-E four-speed overdrive automatic, which enables great highway cruising performance and fuel economy, while retaining good off-the-line performance with the steep first gear. It is tough as nails too, with the durability of hardened internal parts and five-pinion gear sets.

Chevrolet’s Connect & Cruise lineup includes several emissions-compliant E-ROD systems available in both automatic and manual transmissions. They’ve done the work to design and calibrate perfectly matched powertrain systems that are covered by a 24-month / 50,000-mile limited warranty. When it comes to performance innovations that save time, money and guesswork, Chevy crate engines and Connect-and-Cruise systems lead the way – just install, connect, and cruise.

What’s Included

The LS376/525 Connect and Cruise package comes complete with:

  • Engine (19435098)
  • Engine Control System (19354328)
  • Automatic Transmission (19368611)
  • Torque Converter (19299802)
  • Transmission Control System (19302405)
  • Transmission Installation Kit (19259117)
  • Two oxygen sensors and mounting bosses (for installation in the exhaust system)
  • Mass airflow meter and mounting boss (for installation in the air intake system)
  • Throttle pedal assembly (for use with the electronically operated throttle)
  • Assembled wiring harness w/ fuse box and necessary cam and MAP sensor jumpers
  • Oil pressure sensor that is compatible with the harness
  • Instruction sheet

NOTE: All components, engine, transmission, controllers and installation kits are ordered and delivered separately.

Important Notes

For a complete installation, the builder will need to source additional components to complete the engine assembly and get the vehicle running, including:

  • Fuel tank and fuel lines (re-circulating or returnless)
  • Fuel pump – 58 psi (400 kPa) for all engines except LSA, which requires 65 psi (450 kPa)
  • Air induction system that incorporates the mass airflow sensor

Additionally, all engines require a front-end accessory drive system. The instructions included with each kit lists recommendations and Chevrolet Performance offers several configurations to suit different applications. Each allows the installer to easily delete air conditioning. Note that exhaust manifolds are NOT INCLUDED.

The Connect & Cruise LS3 6.2L (430 hp) and 4L65E Crate Powertrain System is also available as an E-ROD system for those who need to retain emissions compliance.

We also recommend the LS1 Engine Installation Guide P/N 88959384, which illustrates basic procedures and offers helpful tips on installing an LS engine into older vehicles.


LS3 Connect & Cruise with 4L65-E Transmission

Engine Specs:

  • LS3 6.2L (376 cu in)
  • 430 hp @ 5,900 rpm
  • 425 lb.-ft. @ 4,600 rpm
  • 10.7:1 compression ratio

Transmission Specs:

  • 4L65-E four-speed automatic
  • Five-pinion gearsets
  • 3.06:1 first gear ratio, 0.70 overdrive ratio
  • 30.75 inches long (approx)




Dyno Chart

LS3 Connect & Cruise with 4L65-E Transmission

Click here to download engine installation information.

Chevrolet Performance recommends the LS1 Engine Installation Guide P/N 88959384, which illustrates basic procedures and offers helpful tips on performing LS engine swaps into older vehicles.

LS3 Connect & Cruise with 4L65-E Transmission

Chevrolet Performance Connect & Cruise Powertrain Systems include a 24-month or 50,000-mile (80,000 kilometer) limited warranty on all components.

Click here for more detailed warranty information.

This product qualifies for a $500/$750/$1,000 Rebate from Chevrolet Performance.

To receive the rebate:

  1. Purchase a select Chevrolet Performance Connect & Cruise System between 1/1/2023 and 12/31/2023
  2. Complete all information requested on this form and mail it by January 31st, 2024, OR
  3. Submit your rebate online at before the same deadline

See rebate form for more details.

NOTE: Please allow up to 6-8 weeks for rebate processing.

Prop65WARNING: These auto parts can expose you to chemicals including phthalates and lead. Installing or using these parts can expose you to other parts containing these chemicals and to engine exhaust, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

You may also like…

  • Sale!

    BluePrint LS01013 Universal Cold Air Intake Kit for Gen IV LS engines

    Add to cart