Horsepower: 525 HP

Torque: 486 LB-FT 

A Bigger Cam for Great Performance

Chevrolet Performance’s LS376/525 is one of our most powerful naturally aspirated 6.2L crate engines. It’s based on the LS3, but adds our aggressive ASA camshaft to expand the performance range, particularly at high rpm, resulting in 525 horsepower and 486 lb.-ft. of torque.

The ASA camshaft is a hydraulic roller with .525-inch lift on both 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.

You’ll need tuning to make the most of the engine in a late-model GM vehicle. If you plan to use the LS376/525 in a vintage car, you’ll need the controller kit P/N 19354332, which includes the throttle pedal to match its electronically controlled throttle body. Use our Muscle Car Oil Pan Kit P/N 19212593 for installation in older vehicles.

INSTALLATION NOTES

• Assembly does not include any electronics
• Use LS376/525 Engine Controller Kit for engine operation, P/N 19354332
• Includes Camaro F-body wet sump oil pan
• Not intended for marine applications
• Front-End Accessory Drive Kits are available in several configurations
• Does not include exhaust manifolds or flexplate/flywheel

TECH SPECS

• Part Number: 19540157
• Engine Type: LS-Series Gen IV Small-Block V-8
• Displacement (cu in): 376 (6.2L)
• Bore x Stroke (in): 4.065 x 3.622 (103.25 x 92mm)
• Block (P/N 12729604): Cast aluminum with 6-bolt, cross-bolted main caps
• Crankshaft (P/N 12736808): Nodular iron
• Connecting Rods (P/N 12649190): Powdered metal
• Pistons (P/N 19207287): Hypereutectic aluminum
• Camshaft Type (P/N 88958770): Hydraulic roller
• Valve Lift (in): .525 intake / .525 exhaust
• Camshaft Duration (@.050 in): 226° intake / 236° exhaust
• Cylinder Heads (P/N 12675871): Aluminum L92-style port; as-cast with 68cc chambers
• Valve Size (in): 2.165 intake / 1.590 exhaust
• Compression Ratio: 10.7:1
• Rocker Arms (P/N 12669995 int): Investment-cast, roller trunnion
• Rocker Arms (P/N 12681275 exh): Investment-cast, roller trunnion
• Rocker Arm Ratio: 1.7:1
• Recommended Fuel: Premium pump
• Maximum Recommended rpm: 6,600
• Reluctor Wheel: 58x
• Balanced: Internal