- Engines & Components
- Engine - Assembled / Ready-to-Run
- Chevrolet Performance SP383 383ci/435HP Connect & Cruise Manual Transmission Powertrain System
The Classic Small-Block Stroker!
When it comes to performance innovations that save time, money and guesswork, Chevrolet Performance once again leads the way!
Chevrolet Performance pioneered the concept of crate engines more than four decades ago, and continues to lead the industry with their unprecedented Connect & Cruise crate powertrain systems - factory-engineered engine and transmission combinations that include all the key components. Chevrolet Performance engineers matched the engines and transmissions for optimal performance and durability, so you can wring out every horsepower from them with total confidence! Designed for retrofit installations in older vehicles, for easier and quicker installation and operation without the need for guessing which parts will work with your combination. The convenience of a crate engine, the assurance of factory validate performance and the value of an inclusive package - that's what you get with Chevrolet Performance's Connect & Cruise crate powertrain systems.
Show More
Each kit delivers a fully assembled crate engine, transmission and the installation kit to get it all running in your project vehicle - including the flywheel, clutch disc, pressure plate, hydraulic throw-out bearing (lines and master cylinder not included), fasteners and instruction sheets. Chevrolet Performance engineers matched the engines with their respective transmissions, ensuring they are up to the task of channeling big power with absolute dependability.
The engineers did all the hard work of designing and calibrating perfectly matched powertrain systems - and they covered them with a 24-month/50,000-mile limited warranty.
SP383 383ci, 435HP / 445TQ Engine
Chevrolet Performance's big-torque SP383 is more powerful than ever. Chevrolet added their revised cylinder heads that incorporate a new, high-rpm valvetrain to help the SP383 produce 435 horsepower and 445 lb-ft of torque. The new, lightweight aluminum cylinder head casting is based on the proven Fast Burn design. They feature 62cc chamber, 210cc intake runners, 2.00" hollow stem intake/1.55" sodium-filled exhaust valves, Blue beehive valve springs, steel retainers, machined steel spring seats and split key locks, D-shaped exhaust ports, dual intake bolt pattern, standard perimeter and center-bolt valve cover bolt patterns, Angled Spark Plugs (5/8" Hex, 3/4" Reach, Tapered Plugs). The beehive-style valve springs enable greater high-rpm performance and durability. They allow the SP383 to rev higher, building more power to complement its low-rpm torque.
The SP383 is built with a brand-new block with four-bolt mains. It also features a forged-steel crankshaft, an aggressive hydraulic roller, camshaft and durable, high-silicon pistons. Unique valve covers distinguish the engine from previous versions and it now includes a high-flow, aluminum intake manifold. Use the Holley 770-cfm four-barrel carburetor (p/n 809-19170093) or (p/n 510-0-83770) to make the most of the engine's capability and achieve the listed horsepower and torque ratings. JEGS has everything you need to finish off the engine and get this small-block stroker running in your vehicle faster!
Specifications:
- Horsepower: 435 @ 5600 RPM
- Torque: 445 ft/lbs @ 4600 RPM
- Block: Cast Iron with 4-Bolt Main Caps
- Crankshaft: Forged Steel
- Connecting Rods: Heavy Duty PM Steel
- Pistons: Hypereutectic Aluminum
- Camshaft: Hydraulic Roller
- Cylinder Heads: 'Fast Burn' Aluminum, 62cc Combustion Chamber
- Balanced: External
- Compression Ratio: 9.6:1
- Rocker Arms: 1.5:1 Aluminum Roller Style
- Water Pump: Long-style
- Recommended Fuel: Premium
T56 Super Magnum Six-Speed Manual Transmission
The Chevrolet Performance T56 Super Magnum Six-Speed Manual Transmission is a high-torque capacity TREMEC six-speed manual. Specially designed for custom, retro-fit installations with Chevrolet Performance crate engines. The exterior case similar to fourth-generation F-body transmission with the stronger, high-capacity gear sets, input shaft and output shaft used in the TREMEC TR6060. It also features a 40-tooth reluctor ring that's necessary for use with electronic vehicle speed sensors used with Chevrolet Performance controllers.
Features:
- 700 lb.-ft. Maximum Torque Capacity
- 26-Spline Input Shaft
- 31-Spline Output Shaft
- Gear Ratios: 2.66 (1), 1.78 (2), 1.30 (3), 1.00 (4), 0.80 (5), 0.63 (6)
- Slip-Yoke Design
- Two-Position Shifter Plate Included, With Third Position Built Into The Transmission
SP383 / T56 Super Magnum Installation Kit
Get your new T56 Magnum bolted to your new engine with this T56 Super Magnum installation kit. Kit includes all the correct components that Chevrolet Performance offers to easily mate your new engine and trans.
Installation Kit Includes:
- Super Magnum Bell Housing Kit
- Hydraulic Throw-out Bearing
- Clutch Actuator to Trans Bolts
- Bell Housing to Trans Bolts
- Flywheel
- Flywheel to Crankshaft Bolts
- Clutch Disc & Pressure Plate Set
- Crankshaft Pilot Bearing
- Instruction Sheet
- Rated for 800 ft/lbs of torque
- Does not include clutch master cylinder and lines
Each Crate Powertrain System Includes:
- Fully assembled crate engine
- Transmission & Install Kit
- Instruction sheet