CPSLS376515T56 - Chevrolet Performance LS3 533HP Carbureted Engine with T56 6 Speed "$500.00 REBATE"

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New Connect and Cruise Package

Chevrolet Performance is breaking new ground with the launch of the new 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. Our engineers 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.

Engine and Trans Includes:

•19301359 LS3 533HP Engine Package
•19329795 GM T56 Transmission with shift lever & knob
•GM Bellhousing, flywheel & clutch installation package

The LS3 gets a big cam and carbureted intake manifold for an additional 86 horsepower!

What's Hot?

  • Bigger Cam!
  • Carbureted intake
  • 24-month GMPP warranty

You know that the LS3 is the hot new small block V8 in the GM arsenal, but you still want more. We proudly offer you the LS 376/515, an upgraded LS3 that is equipped with an aggressive camshaft and GM Performance Part's exclusive carbureted intake manifold. Two simple upgrades that add up to 533 horsepower - a 103 horsepower bump over the stock LS3.

To match the high flow rate of the LS3 cylinder heads, our GM Performance Parts engineers installed the "ASA Hot Cam" (p/n 12480110). This is a hydraulic roller camshaft that offers up .525-inch intake and exhaust valve lift numbers and duration @ .05-inch of 226 intake and 236 exhaust. It truly is a "hot cam" that offers up an aggressive lope at idle and a buzz saw power band that never stops.

The GM Performance Part engineers coupled that aggressive camshaft and high flowing cylinder head design with our new carbureted intake manifold specific for the L92/LS3 cylinder heads (p/n 12629063). The manifold offers a dramatic increase in horsepower and a simplified installation.
If you like what you see with the new LS3, you'll love the LS 376/515. It's everything you want in a small block V8 - big power, simple package, and a big-inch foundation. The GM Performance Parts intake allows for an easy installation that you will find familiar while still being very powerful. The LS 376/515 - the next great small block from GM Performance Parts.

Power: 533 HP @ 6600 RPM, 477 ft. lbs. of torque @ 5200 RPM
Displacement: 376 CID, 6.2L
Bore x Stroke: 4.060” x 3.620”
Compression Ratio: 10.7:1
Recommended Fuel: 92 Octane
Block: Cast Aluminum with 6 bolt cross bolted main caps.
Crankshaft: Nodular Iron
Connecting Rods: Powdered Metal Steel
Pistons: Hypereutectic Aluminum
Camshaft: Steel Hydraulic Roller Tappet
Cam Lift: .525” Intake / .525” exhaust
Cam Duration @ .050”: 226 deg. Intake / 236 deg. Exhaust
Lobe Separation: 110 Degree
Cylinder Heads: Aluminum L92 style ports.
Combustion Chamber: 68cc
Valves: 2.165” Intake/ 1.590” Exhaust
Rocker Arms: Cast Roller Trunnion, 1.7:1 Ratio
Balance: Internal
Reluctor: 58X
Maximum GM Recommended RPM: 6600

Engine Includes:
• Fully GM assembled long block
• Ignition Coils, Plug Wires and Spark Plugs
• Oil pump, pick-up and Camaro oil pan
• Exhaust Manifolds
• Aluminum 4 barrel Single Plane Intake
• 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 warranty. Click on Document tab above for full details.

Related Engines and Components:
Chevrolet Performance Carbureted LS Engine Controller Package
See More Information for Chevrolet Performance T56 6 Speed Transmission
Pace Engine Dyno Break-In & Testing
Engine Break-In Lubricants
FEAD Serpentine Accessory Drive Packages
See More Connect & Cruise Engine and Transmission Packages
LS Engine Swap Mounts and Conversion Kits
Cruise Control Packages and Solutions
LS Engine Swap Oil Pan Packages

Application List


Shipping Information

  • Item Requires Shipping
  • 500.0 lbs.
  • W37.0000” x H36.0000” x L42.0000”
  • Free Shipping!
  • FREE 48 State Truck Freight Shipping (International shipping will require freight quote)

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