GM LS3 480hp Crate Engine 19370411
LS 376/495HP (Previously dubbed 480hp)
473 Ft. Lbs @ 4,500
LS3 Hot Cam = Loads of Fun.
Big EFI power
24-month GMPP warranty
The hot new small block V8 in the GM lineup is the hyper-aggressive LS3. It offers a high-revving 376-inch combination that represents generations of small block V8 development and engineering. Not only is the LS3 an amazing engine in its stock configuration, but with those high-flowing rectangular port cylinder heads, the LS3 is loaded with potential. To tap into this potential, the engineers at GM Performance Parts offer you the LS 376/495 – an LS3 with an upgraded camshaft that ups power by a whopping 65 horsepower!
The LS 376/495 comes with the same great features as the LS3 crate engine. The bottom end includes a 6-bolt aluminum block, nodular crank, high performance rods, and 10.7:1 pistons. The heads are high-flowing rectangular-port units that share their design with the amazing LS7. The same EFI intake manifold feeds the hungry engine, while 1.7:1 roller rockers work with the upgraded camshaft.
The GM Performance Parts engineers picked the LS Hot Cam (p/n 12617570) to take the LS3 to the next level. This cam specs out with .525-inch intake and exhaust valve lift. Duration (@ .050 inches) is 219 intake and 228 exhaust. This cam allows for a dramatic increase in power across the power band while still maintaining good street manners. The engine will idle and cruise just like an LS3, but the power increase is there whenever you need it.
With all of the same great components as the LS3, but with an additional 50 horsepower, the new LS 376/495 is ready, willing, and able to answer your call for a new LS crate engine.
Power: 495 HP @ 6200 RPM, 473 ft. lbs. of torque @ 4500 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”: 219 deg. Intake / 228 deg. Exhaust
Lobe Separation: 112 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
Maximum GM Recommended RPM: 6600
• Fully GM assembled long block
• Ignition Coils, Plug Wires and Spark Plugs
• Oil pump, pick-up and Camaro/Chevy SS oil pan
• Camaro/Chevy SS Exhaust Manifolds
• Intake, Injectors and Throttle Body (Brass style)
• 14” Auto Trans Flexplate
• Harmonic Balancer (Corvette spacing)
• 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. (Applies to GM Dealer installs only. If we, another shop, or you will be installing it, it's a 2 year 24,000 mile warranty on PARTS only, not labor).
Genuine GM “480” hp crate engine, ***updated horsepower rating for 2016 to 495hp***