Chevy Performance LS376/525 Connect & Cruise Powertrain System – 525hp Engine with T56 Manual Transmission


  • LS376/525(376 cu in)525 hp Engine
  • T56 Super Magnum Six-Speed Manual Trans.
  • Calibrated Engine Control Module
  • GM’s Most Powerful Naturally-Aspirated F.I. LS
  • Exhaust Manifolds NOT INCLUDED
REBATE AVAILABLE: $500/$750/$1,000 Prepaid VISA Gift Card From Chevrolet Performance. See 'Rebate' tab below for details.
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LS376/525 Connect & Cruise with T56 Transmission

What do you get when you take Chevrolet Performance’s aggressive ASA camshaft developed for the high-rpm world of circle-track racing and slip it into the LS3 6.2L engine? You get an engine with fuel-injected ferocity for your performance car! Swap this 6.2L engine into your build and enjoy every bit of its 525 horsepower. We call it the LS376/525, and if take-no-prisoner performance is what you’re looking for in your pro-touring Camaro or resto-mod Chevelle, this is it. This complete package includes the engine, manual transmission, electronic controllers and all the necessary wire harnesses – all for less than the cost of buying the components separately.

This high-revving powerhouse is one of our most powerful production-based crate engines. The ASA camshaft is a hydraulic roller with .525-inch lift on both sides, along with 226 degrees of duration on the intake side and 236 degrees on the exhaust side. Coupled with a tight, 110-degree lobe separation angle, it helps the engine deliver excellent throttle response and breathe exceptionally well at high rpm. And for durability, we complement the cam with higher-rate valve springs.

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 powertrain system is backed by the T56 Super Magnum six-speed manual transmission for thrill of selecting your own gears and a double overdrive to make highway cruising a pleasure. These transmissions are rated to 700 lb.-ft. of torque and are brand new from the ground up. They use an extensively modified transmission case to prevent leaks under high-stress conditions and increase overall power-handling capabilities. The exterior case is similar in style to the T56 used in the fourth-generation F-body with stronger, high-capacity gear sets, input shaft and output shaft used in the Tremec TR6060. Kit includes shifter handle and Chevrolet Performance-logo ball-type shift knob to complete your install.

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:

  • Brand New Engine (19432418)
  • Engine Control System (19354332)
  • Manual Transmission (19352208)
  • Manual Transmission Installation Kit (19301625)
  • 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.

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.

Weight 450 lbs

LS376/525 Connect & Cruise with T56 Transmission Tech Specs

Engine Specs:

  • LS376 / 525 (376 cu. in.)
  • 525 hp @ 6,300 rpm
  • 489 lb.-ft. @ 4,400 rpm
  • 10.7:1 compression ratio

Transmission Specs:

  • T56 Super Magnum six-speed manual
  • 26-spline input shaft, 31-spline output shaft
  • Slip-yoke design, 40-tooth reluctor ring for use with Chevrolet Performance controllers
  • New synchronizers featuring fine tooth angles
  • Bolstered one-piece countershaft to resist distortion
  • Re-designed shift forks
  • Gear ratios: 1st-2.66, 2nd-1.78, 3rd-1.30, 4th-1.00, 5th-0.80, 6th-0.63)
  • 33.6 inches long (approx)

LS376/525 Connect & Cruise with T56 Transmission

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.

LS376/525 Connect & Cruise with T56 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.


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