New 8L90E Connect and Cruise Package
Chevrolet Performance is breaking new ground with the launch of the new 8L90E Connect-and-Cruise crate powertrain systems. They're factory-engineered engine-and-transmission combinations that include all the electronic control modules, wiring harnesses and other key components you need with the simplicity of one part number. We've matched the engines and transmissions for optimal performance and durability, so you can wring out all the horsepower from them with total confidence. The specially calibrated controllers are designed for retrofit installation in older vehicles, for easier and quicker installation and operation, without the need for third-party tuning. Each one comes with an installation kit, including flex plates, covers and other important components to keep typical mid-project parts chasing to a minimum.
GM LT4 640HP Engine and 8L90E Package Includes:
• 19355404 LT4 640HP Wet Sump Engine
• 19355174 Engine Controller
• 24284063 8L90E 8-Speed Automatic Transmission Package
• 24284144 8-Speed installation package
The Next Generation is Here!
Chevrolet Performance is proud to offer the all-new LT4 crate engine. Introduced on the seventh-generation Corvette Stingray, the LT4 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!
The LT4 is architecturally similar to the LS family of Small-Block engines, but with a unique block casting, cylinder head design, oiling system and more. It also combines advanced technologies including direct injection, Active Fuel Management (cylinder deactivation) and continuously variable valve timing to support an advanced combustion system.
The Chevrolet Performance LT4 crate engine is rated at 640 horsepower and 630 lb.-ft. of torque.
Power: 640 HP @ 6000 RPM, 630 ft. lbs. of torque @ 4600 RPM
Displacement: 376 CID, 6.2L
Bore x Stroke: 4.065” x 3.622”
Compression Ratio: 10.0:1
Recommended Fuel: 92 Octane
Block: Cast Aluminum with 6 bolt cross bolted main caps
Crankshaft: 8-bolt Forged Steel
Connecting Rods: Forged Powdered Metal Steel
Pistons: Forged Aluminum
Camshaft: Billet Steel Hydraulic Roller Tappet
Cam Lift: .492” Intake / .551” exhaust
Cam Duration @ .050”: 189 deg. Intake / 223 deg. Exhaust
Lobe Separation: N/A
Cylinder Heads: Aluminum Rectangular Port, Direct Injected
Combustion Chamber: 59cc
Valves: 2.130” Intake/ 1.590” Exhaust
Rocker Arms: Cast Roller Trunnion, 1.81:1 Ratio
Maximum GM Recommended RPM: 6600
• Fully GM assembled long block
• Ignition Coils, Plug Wires and Spark Plugs
• Oil pump, pick-up and wet sump oil pan
• Exhaust Manifolds
• Intake, Injectors and Throttle Body
• High Pressure Fuel Pump (installed)
• 14” Auto Trans Flexplate
• Harmonic Balancer
• Front timing cover
• Aluminum Water Pump
• Oil Filter
• Passenger Side RH Oil Dipstick and Tube
General Motors limited 2 year / 50,000 mile parts & labor engine warranty and limited 1 year parts replacement only transmission warranty. Click Here to view or download warranty form.
This Chevrolet Performance 8L90E Transmission Package is designed for "Plug and Play" use with Chevrolet Performance LS engine controller.
Package Includes:• GM 8L90E rear wheel drive, Slip-yoke style transmission assembly
8L90E Specifications and Features:• Rated for maximum engine crankshaft torque 640 lb-ft
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