Ram Jet 350 (351 hp) Connect & Cruise Crate Powertrain System with T56 Manual Transmission


  • Ram Jet 350(350 cu. in.) 351 HP Engine
  • Calibrated Engine Control Module
  • T56 Super Magnum Six-Speed Manual Trans.
  • Vintage Style with Modern Performance!
REBATE AVAILABLE: $500/$750/$1,000 Prepaid VISA Gift Card From Chevrolet Performance. See 'Rebate' tab below for details.
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SKU: CPSRAMJET3506LMAN Categories: , Tag:

Ram Jet 350 Connect & Cruise with T56 Transmission

Engine Specs:

  • Ram Jet 350 (350 cu. in.)
  • 350 hp @ 5,200 rpm
  • 400 lb.-ft. @ 3,500 rpm
  • 9.0:1 compression ratio
  • 64 cc iron Vortec heads (1.940 intake / 1.500 exhaust valves)
  • 1.6 ratio roller rocker arms
  • .460 intake / .481 exhaust camshaft lift

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)

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 and automatic or manual transmission and, 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 for fuel-injected engines are designed for retrofit installations in older vehicles, for easier and quicker installation – and more importantly – operation without the need for third-party tuning.

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, controllers and installation kits (where applicable) are ordered and delivered separately.

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 that also allows the installer to easily delete air conditioning.

Weight 475 lbs

Ram Jet 350 Connect & Cruise with T56 Transmission

CPSRAMJET3506LMAN System Components:

  • 19417619 Engine (Includes MEFI 4 Engine Controller and Wiring Harness)
  • 19352208 Transmission
  • 19329900 Transmission Installation Kit

Vintage Style with Modern Performance and 6-Speed Thrills!

Chevrolet Performance’s Ram Jet 350 combines the classic styling of the original Rochester mechanical fuel injection system with modern performance and dependability of an electronically-controlled port fuel injection system. A perfect combination for a vintage Corvette, resto-mod Tri-Five or any hot rod! You get a pump-gas-friendly 9.0:1 compression ratio that is the product of GM’s legendary Vortec heads combined with a durable rotating assembly inside of a brand-new 2-bolt engine block. Add to that a smooth hydraulic roller camshaft for great power and torque while providing great idle quality. The engine’s unique Ram Jet intake plenum is only 9.75 inches tall so it can fit under hoods where other setups might not. It’s all 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.

Dyno Chart

Ram Jet 350 Connect & Cruise with T56 Transmission

Click here to download installation information.

Ram Jet 350 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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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