19301360 - Chevrolet Performance LS3 525HP Crate Engine

Chevrolet Performance has released its latest factory-engineered LS high-performance engine – the LS376/525. It blends the racing-derived ASA camshaft with the LS3 6.2L production engine to create the most powerful production-based crate engine in Chevrolet Performance's portfolio – delivering 525 horsepower at 6,300 rpm and 489 lb.-ft. at 4,400 rpm.

The LS376/525 is available under part number 19259233 and carries a suggested retail price of $8,937.50. For installation in older vehicles, the engine controller kit part number 19259261 is calibrated specifically for this new engine.

“This is a terrific engine combination that illustrates perfectly the performance potential of the LS engine family – and how it can be enhanced dramatically at an affordable price,” said Jim Campbell, GM U.S. vice president of Performance Vehicles and Motorsports. “Whether you've got a new Camaro or a classic Chevelle, this engine delivers terrific bang for the buck.”

Using the LS3 production engine – the same used in Corvettes and Camaros – as the foundation for the LS376/525 helped keep the retail price lower, while the ASA camshaft is a proven, power-building component that has been successful in the high-rpm world of circle track racing.

The ASA camshaft is a hydraulic roller with .525-inch lift on both the intake and exhaust sides, along with 226 degrees duration on the intake side and 236 degrees on the exhaust side. Coupled with a tight, 110-degree lobe separation angle, it helps the engine deliver excellent throttle response and breath exceptionally well at high rpm. Chevrolet Performance complements this high-performance camshaft in the engine with higher-rate valve springs.

The cam also gives the LS376/525 the most aggressive personality among Chevrolet Performance's growing lineup of production-based high-performance crate engines, which also includes the LS376/480 (part number 19244549) and the carbureted LS376/515 (part number 19171225).

“The LS376/525 engine has an edge to it,” said Campbell. “You'll notice it in the idle quality and you'll feel it when the revs quickly climb.”

As delivered, the LS376/525 includes the intake manifold, with the injectors, fuel rail and throttle body already installed, along with the water pump and ignition system. Front-end accessories must be obtained separately, along with the engine controller kit. Chevrolet Performance offers several accessory drive kits to suit a variety of applications and some installations for older vehicles will require Chevrolet Performance's Muscle Car Oil Pan Kit, part number 19212593.

Specifications:
Power: 525 HP @ 6300 RPM, 489 ft. lbs. of torque @ 4400 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 Corvette oil pan
• Exhaust Manifolds
• EFI Intake with fuel rails, injectors and throttle body
• 14” Auto Trans Flexplate
• Harmonic Balancer
• Front timing cover
• Aluminum Water Pump
• Oil Filter
• Passenger Side RH Oil Dipstick and Tube

Warranty:
General Motors limited 2 year / 50,000 mile parts & labor warranty. Click on Document tab above for full details.

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GM Performance LS3 525HP Engine Controller Package
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LS Engine to SBC and BBC Auto Trans Conversion Kit
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