LT1 6.2L Wet Sump Connect & Cruise with 8L90-E Transmission


  • LT1 6.2L (376 cu in) 455 hp Engine
  • Wet Sump Oiling System
  • 8L90-E Eight-Speed Automatic Transmission
  • Engine and Transmission Control Modules
REBATE AVAILABLE: $500/$750/$1,000 Prepaid VISA Gift Card From Chevrolet Performance. See 'Rebate' tab below for details.

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SKU: CPSLT18L90EW Categories: , Tag:

LT1 6.2L Wet Sump Connect & Cruise with 8L90-E Transmission

Engine Specs:

  • LT1 6.2L (376 cu in)
  • 455 hp @ 6,000 rpm
  • 455 lb.-ft. @ 4,600 rpm
  • 11.5:1 compression ratio

Transmission Specs:

  • 8L90-E eight-speed automatic
  • Four gearsets for greater efficiency
  • 4.56:1 first gear ratio, 0.65 final overdrive ratio
  • World-class upshift speeds

More about Connect & Cruise Crate Powertrain Systems

The Complete Performance Package!

When it comes to factory-engineered performance and convenience, nothing beats Chevrolet Performance’s industry-exclusive Connect & Cruise powertain systems. With one package you get the engine, automatic or manual transmission, electronic controllers and al the necessary wire harnesses. Even better, we deliver it for less than the cost of buying the components separately.

Our engineers matched the engines and transmissions for optimal performance and durability, so you can wring out every horsepower with total confidence! The specially calibrated 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.

The Connect & Cruise lineup even includes several emissions-compliant E-ROD systems in both automatic and manual.

We did the work to design and calibrate perfectly matched powertrain systems and covered them with a 24-month / 50,000-mile limited warranty.

Chevrolet Performance pioneered the performance crate engine, so when it comes to performance innovations that save time, money and guesswork, we once again lead the way! All you have to do is install, connect, and start cruising!

NOTE: All components, engine, transmission, torque converter and controllers are ordered and delivered separately.

Connect & Cruise Builders Guide

Each Chevrolet Performance Connect & Cruise crate powertrain system includes:

  • Brand-new, fully assembled crate engine
  • Brand-new automatic or manual transmission
  • SuperMatic transmission control module and harness
  • Calibrated engine control module
  • 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

To facilitate 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.

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


LT1 6.2L Wet Sump Connect & Cruise with 8L90-E Transmission

CPSLT18L90EW System Components:

  • 19418843 Engine with Wet Sump Oiling System
  • 19418589 Engine Control System
  • 19417579 Transmission
  • 19417103 Transmission Installation Kit

All The Latest Technology In One Package From Chevrolet Performance!

Introduced on the seventh-generation Corvette Stingray, the LT1 6.2L opened the next chapter in the long, historic legacy of the Small-Block engine ? and gives your project vehicle a high-tech heart transplant with an unprecedented balance of performance and efficiency! This LT1 is designed specifically for the 8-speed automatic and is rated at 455 horsepower and 455 lb.-ft. of torque.

Chevrolet Performance adapted the production 8L90-E eight-speed automatic for use with the LT1 crate engines in this Connect & Cruise Powertrain System. With world-class upshift speeds and a (numerically) high 4.56 first gear ratio, you’ll experience strong take-off from a stop, while the wide 7.0:1 overall ratio enhances cruising efficiency on the highway.

LT1 6.2L Wet Sump Connect & Cruise with 8L90-E Transmission

Click here to download installation information.

LT1 6.2L Wet Sump Connect & Cruise with 8L90-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 1/1/2024 and 12/31/2024
  2. Complete all information requested on this form and mail it by January 31st, 2025, 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.


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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