SP383 Deluxe Connect & Cruise Crate Powertrain System with T56 Manual Transmission


  • 435hp @ 5,600 rpm / 445 lb.-ft. @ 4,600 rpm
  • Forged Steel Crank in a Four-bolt Main Block
  • Lightweight Aluminum Heads and Intake
  • T56 Super Magnum Six-Speed Manual Trans.

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SKU: CPSSP3836LMAN Categories: , Tag:

SP383 Deluxe Connect & Cruise with T56 Transmission

Engine Specs:

  • SP383 Deluxe (383 cu. in.)
  • 435 hp @ 5,600 rpm
  • 445 lb.-ft. @ 4,600 rpm
  • 9.6:1 compression ratio
  • 62 cc aluminum Fast Burn heads (2.000 intake / 1.550 exhaust valves)
  • 1.5 ratio roller rocker arms
  • .509 intake / .528 exhaust camshaft lift

Transmission Specs:

  • T56 Super Magnum six-speed manual
  • 26-spline input shaft, 31-spline output shaft
  • Slip-yoke design
  • 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)

Installation Notes:

  • Requires addition of carburetor, ignition/distributor, fuel pump and starter (all not included)
  • MUST use distributor with melonized steel gear (P/N 10456413), or engine damage will occur
  • Horsepower numbers were developed with a 770 cfm Holley carburetor, P/N 19170093 (not included)
  • Chevrolet Perf. dual-plane intake manifold (P/N 12366573) may be used for more hood clearance (sold separately)
    • Use of the dual-plane, low-rise intake manifold may decrease peak power by 15-20 hp

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.


SP383 Deluxe Connect & Cruise with T56 Transmission

CPSSP3836LMAN System Components:

  • 19355722 Engine
  • 19352208 Transmission
  • 19329900 Transmission Installation Kit

Big-Block Torque from a Small-Block Package with a Stout Manual Gearbox Backing It!

The SP383 is the latest triumph from Chevrolet Performance. This stroked Small-Block is built with a brand-new block featuring four-bolt main caps. It also features a forged steel crankshaft with the extra inches and grunt from that longer stroke along with improved Fast Burn-style cylinder heads and a high-flow aluminum intake manifold on top for better breathing! The updated aluminum heads feature 2.00/1.55-inch valves, a unique combustion chamber design and LS-style beehive valve springs for greater high-rpm performance and durability. A hydraulic roller camshaft with more than 0.500-inch lift optimizes the airflow through the high-flow head design.

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

Click here to download installation information.

Chevrolet Performance Crate Engines include a 24-month or 50,000-mile (80,000 kilometer) limited warranty.

Click here for more detailed warranty information.

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