Chevrolet Performance LS376/525 376ci Crate Engine – 19435104

Maximize LS potential with the Chevrolet Performance LS376/525 376ci Crate Engine. This ultimate naturally aspirated LS delivers 525 horsepower and 489 lb-ft of torque through advanced engineering. The LS376/525 features highly aggressive camshaft profile, premium CNC-ported heads, forged internals, and optimized components for maximum power output. The 6.2L displacement is pushed to its naturally aspirated limits. Perfect for serious street/strip builds, pro-touring applications, and vehicles demanding maximum LS power without forced induction. Factory-assembled, dyno-tested, and represents the pinnacle of naturally aspirated LS performance.

**Technical Specifications:**

LS376-525 Technical Specifications
Part Number: 19435104
Engine Type: V8 LS-Series Gen-IV Small-Block
Displacement (cu. in.): 376 (6.2 L)
Bore x Stroke (in.): 4.065 x 3.622 (103.25 x 92 mm)
Block (P/N 12623967): Cast aluminum with six-bolt main bearing caps, cross-bolted
Crankshaft (P/N 12685659): Nodular iron
Connecting Rods (P/N 12607475): Powder metal
Pistons (P/N 19207287): Hypereutectic aluminum
Camshaft Type (P/N 88958770): Hydraulic roller
Valve Lift (in.): 0.525 intake / 0.525 exhaust
Camshaft Duration (@0.050 in.): 226° intake / 236° exhaust
Cylinder Heads (P/N 12629063): L92-style aluminum port; “as cast” with 68 cc chambers
Valve Size (in.): 2.165 intake / 1.590 exhaust
Compression Ratio: 10.7:1
Rocker Arms (P/N 12569167 int): Investment cast, roller pivot
Rocker Arms (P/N 10214664 exh): Investment cast, roller pivot
Rocker Arm Ratio: 1.7:1
Recommended Fuel: Premium pump
Recommended Maximum RPM: 6600
Reluctor Wheel: 58X
Balanced: Internally