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Chevrolet Performance LS3 6.2L 376 c.i.d. 430 hp long block crate engines use an impressive 10.7:1 compression ratio to put out 430 hp at 5,900 rpm and 425 lbs.-ft. of torque at 4,600 rpm. They feature a cast aluminum engine block with a nodular iron crankshaft, powdered metal connecting rods, and hypereutectic pistons. The steel hydraulic roller camshaft has a .551 in. intake and .522 in. exhaust valve lift with 204 degrees intake and 211 degrees exhaust valve duration at .050 in. cam lift. Long block crate engines also include: * Ignition coil packs * Spark plug wires * Spark plugs * Intake manifold * Fuel injectors * Throttle body * Front timing cover * Aluminum water pump * Harmonic balancer * Passenger side right hand dipstick and tube

• Specifikationer

  • Valve Size (in): 2.165 intake / 1.590 exhaust
  • Connecting Rods (P/N 12649190): Powdered metal
  • Recommended Fuel: Premium pump
  • Cylinder Heads (P/N 12629063): Aluminum L92-style port
  • Rocker Arms (P/N 12669995 int): Investment-cast, roller trunnion
  • Pistons (P/N 19207287): Hypereutectic aluminum
  • Displacement (cu in): 376 cu in (6.2L)
  • Part Number: 19432414 / 19434636
  • Valve Lift (in): .551 intake / .522 exhaust
  • Block (P/N 12623967): Cast-aluminum with 6-bolt, cross-bolted main caps
  • Camshaft Duration (@.050 in): 204° intake / 211° exhaust
  • Bore x Stroke (in): 4.065 x 3.622 (103.25 x 92mm)
  • Balanced: Internal
  • Reluctor Wheel: 58x
  • Maximum Recommended rpm: 6,600
  • as cast with 68cc chambers
  • Rocker Arm Ratio: 1.7: 1
  • Camshaft Type (P/N 12623063): Hydraulic roller
  • Compression Ratio: 10.7: 1
  • Crankshaft (P/N 12597569): Nodular iron
  • Engine Type: LS-Series Gen IV Small-Block V-8
  • Rocker Arms (P/N 12669993 exh): Investment-cast, roller trunnion
  • TECH SPECS