LS3 6.2L Performance Crate Engine

GM 6.2L LS3 first appeared in 2008 for the Corvette C6, it features a durable aluminum cylinder block that houses a cast steel crankshaft and lightweight reciprocating parts. High-flow rectangle port cylinder heads feature a high flowing design to deliver outstanding performance.

LS3 6.2L Engine Specs:

• Engine Type: LS-Series Gen IV Small-Block V-8
• Displacement: 376 ci (6.2L)
• Bore x Stroke: 4.065 x 3.622 in. (103.250 x 92 mm)
• Block: Cast-aluminum with six-bolt, cross-bolted main caps
• Crankshaft: Nodular iron
• Connecting Rods: Powdered metal
• Pistons: Hypereutectic aluminum
• Camshaft Type: Hydraulic roller
• Valve Lift: .551 in. intake / .522 in. exhaust
• Camshaft Duration (@.050 in.): 204-degree intake / 211-degree exhaust
• Cylinder Heads: L92 style port; 'as cast' with 68-cc chambers
• Valve Size: 2.165 in. intake / 1.590 in. exhaust
• Compression Ratio: 10.71
• Rocker Arms: Investment-cast, roller trunnion
• Rocker Arm Ratio: 1.7:1
• Recommended Fuel: 92 octane
• Maximum Recommended rpm: 6600
• Reluctor Wheel: 58X
• Balanced: Internal

19434644 supersedes 19432422, 19420382