Chevrolet Performance LT1 E-ROD Crate Engine

• Part Number: 12682080
• Engine Type: Direct Injection spark-ignition Gen-V 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 12619171): Cast aluminum with 6-bolt nodular iron main bearing caps
• Crankshaft: Forged steel
• Connecting Rods: Forged powdered metal
• Pistons (P/N 12662802): Eutectic
• Camshaft Type (P/N 12629512): Billet steel roller
• Valve Lift (in.): .561 intake / .531 exhaust
• Camshaft Duration (@0.050 in.): 200° intake / 212° exhaust
• Cylinder Heads (P/N 12620544): Aluminum, rectangular port D/I
• Valve Size (in.): 2.13 intake / 1.59 exhaust
• Compression Ratio: 11.5:1
• Rocker Arms (P/N 12619829 int): Investment-cast, roller trunnion
• Rocker Arms (P/N 12619829 exh): Investment-cast, roller trunnion
• Rocker Arm Ratio: 1.81:1
• Recommended Fuel: Premium pump
• Maximum Recommended rpm: 6600
• Reluctor Wheel: 58X
• Balanced: Internal

The LT1 is architecturally similar to the LS family of Small-Block engines, but with a unique block casting, cylinder head design, oiling system and more. It also combines direct injection and continuously variable valve timing to support an advanced combustion system.